BIO101 Practice Questions PDF

PLB 101 PQ 1. Holoenzyme is what? A. Inactive protein B. Active protein and cofactor C. Inactive protein and cofactor D. Active protein enzyme 2. Dehydrogenation of alcohol using alcohol dehydrogenase gives? 3. Vacuole in plant is A. Non membranous B. Membranous and stores lipids and protein C. Memb...

PLB 101 PQ 1. Holoenzyme is what? A. Inactive protein B. Active protein and cofactor C. Inactive protein and cofactor D. Active protein enzyme 2. Dehydrogenation of alcohol using alcohol dehydrogenase gives? 3. Vacuole in plant is A. Non membranous B. Membranous and stores lipids and protein C. Membranous and stores material and secret them 4. The energy rich organic compound produced in Calvin cycle is ____ A. C3H6O3 B. NADPH C. ATP 5. Photosynthesis is a _______ A. Oxidation reaction B. Oxidation-reduction reaction C. Reduction reaction D. None of the above 6. The energy production stage in glycolysis is which of the following? A. Glucose-----> Glucose-6-phosphate B. Glucose-6-phosphate -----> Fructose C. 2Phosphoenolpyruvate -----> 2pyruvate D. 3- phosphoglycerate -----> 2-phosphoglycerate7. 7. How many stages produce ATP during glycolysis? A. 4 B. 1 C. 2 D. 3 8. Phloem transports nutrients and products of photosynthesis in ______ A. Upward direction B. Downward direction C. All directions D. None of the above 9. What organelle is known as the power house of the cell? A. Nucleus B. Mitochondria C. Golgi Apparatus D. Ribosomes 10. The electron transport system (ETS) occurs in what part of the mitochondria? A. Inter-membrane space B. Inner membrane C. Matrix of the mitochondria D. Outer membrane 11. The final electron acceptor in the Electron transport chain (ETC) is _____ A. Oxygen B. Nitrate ion C. Nitrous oxide D. Nitrogen gas 12. Who's the first scientist to discover cell? 13. Which of the following is also a waste product alongside CO2 in respiration A. water vapor B. liquid water C. oxygen D. glucose. 14. Hydathodes are found in A. Stems B. Roots C. Leaf tips. D. Leaf. 15. Cellular respiration occurs in how many stages A. 2 B. 4 C. 3 D. 5 16. Function of guard cells is? A. It controls exchange of gases B.it controls exchange of gases and removal of water vapour C.it controls removal of water vapour D. It regulates the size of the stomata 17. Oxidative phosphorylation gives rise to A. NADH B. ATP + H20 C. ADP. 18. In what year was the term Photosynthesis first used? 19. H2O has ____ A. +ve charge only B. -ve charge only C. +ve and -ve charges D. None of the above 20. The integral part of the cytoplasm is known as? A. Cytosol B. Nucleoli C. Nucleus D. All of the above 21. At what stage of photosynthesis is ADP, Pi and NAD+ released? A.light-indepent phase B.light-dependent phase 22. How many ATP and NADPH is required to reduce CO2 to glucose via photosynthesis A.12 ATP & 12 NADPH B.12 ATP & 18 NADPH C.18 ATP & 12 NADPH D. 6 ATP & 12 NADPH 23. Which year was cell theory proposed A. 1839 B. 1829 C. 1819 D. 1809 24. During metabolic reaction with protein, which of the following is excreted A. Gum B. Nitrogenous compound C. Latex 25. Plants absorbs water from soil by A. root B. root cells.C. root hairs D. none of the options 26. Who proposed the cell theory A. Schwann and schleidn B. Carlos and Robert C. All of the above D. None of the above 27. And product of ETC, the oxygen combine with what to form what? A. Hydrogen, water B. Proton, water 28. In 10molecules of Ribulose 5 phosphate how many carbon atoms can be gotten A. 20 B 30 C 40 D 50 29. The final Electron acceptor of PS1 is.... A. Plastoquinone B. Plastocyanin C. Ferrodoxin D. Water 30. What catalyses the conversion of Polypeptide to amino acid. A. Peptidase B. Peptone C. Propsin 31. What enzyme is involved in the conversion of Urea into ammonia and carbon dioxide A. Ureease B. UreaseC. Carboxylase 32. What is formed in skeletal muscle as a result of anaerobic respiration A. Lactic acid B. CO2 C. O2 33. Which of the following is not correct? A. DHAP is a 2C molecule B. G3P is a 3C molecule C. 1,3-BPG is a 3C molecule 34. How many phosphate groups are present in 30 molecules of 1, 3-BPG? A. 30 B. 60 C. 90 35. Microfilaments are composed of ______ A. Carbohydrates B. Fats and lipids C. Protein D. None of the above 36. Cuticle is found in Ans: Terrestrial plants 37. Electron transport chain takes place in A. Cytoplasm B. Nucleus C. Inner mitochondrial membrane 38. pH of 7 is Ans: Neutral 39. A compound that resists change in pH on addition or dilution of acid or alkalineAns: Buffer 40. Respiration is a____ reaction A. Oxidation B. Reduction C. Oxidation and reduction 41. Photosynthesis is a____ reaction Ans: Reduction 42. Power house of a cell is Ans: Mitochondria 43. Hydathodes are found in Ans: Angiosperms 44. High energy of light has ____ Ans: Short wavelength 45. Plants absorb mineral nutrients by Ans: Diffusion and Active transport 46. ____ are found in bacteria and are circular made of DNA Ans: Plasmids 47. The following are double membraned Ans: Chloroplast, Mitochondria, Nucleus 48. pH of 1.5 is Ans: Highly acidic 49. Which has the biggest egg Ans: Ostrich egg 50. The following are types of protein fibres except A. Microtubules B Microfilaments C. intermediate filaments D. All of the above 51. Types of endoplasmic reticulum Ans: Rough and smooth ER 52. The cell theory was postulated when A. 1839 B. 2000 C. 1964 53. Which of the following requires 2 pigment systems? A. Calvin cycle B. Cyclic phosphorylation C. Non-cyclic phosphorylation 54. Who observed the nucleus as an organelle? A. Robert Brown B. Roberto Carlos C. Theodore Schwann D. Nicholas Cage 55. Who observed the ribosome as dense substances in electron microscope? A. George Palade B. Matthias Schleiden C. Anyone 56. Oxygen is an inhibitor of _______ of RuBP A. Oxygenase activity B. Carboxylase activity C. Anything 57. The H+ produced during cyclic phosphorylation diffuses through __________ A. NADPHB. ATP synthase C. None of the above 58. Nitrogenous compounds produced during respiration in plants are stored in the following locations except A. Leaves B. Fruits C. Stem D. Bark 59. In which step in Kreb's cycle is FAD+ reduced to FADH2? A. Isocitrate to oxaloacetate B. Succinate to malate C. Succinate to fumarate D. None of the above 60. Which of these compounds is an isomer of G3P? A. 1, 3-BPG B. DHAP C. 3-PGA D. NADPH 61. All digestive enzymes are generally classified as A. Oxidoreductases B. Hydrolases C. Lyases D. Ligases 62. How many kcal are produced in aerobic and anaerobic respectively? A. 66 and 886 B. 76 and 666 C. 56 and 686D. 36 and 776 63. Dark stage occurs in the ____ of the chloroplast A. Stroma B. Thylakoid 64. An example of unicellular organism is A. Maize B. Chlamydomonas C. Rice D. None of the above 65. __ is the degree of acidity and alkalinity A. OH B. NH C. PH 66. All digestive enzymes are generally classified as A. Oxidoreductases B. Ligases C. Lyases D. Hydrolases 67. A substance that acts as a resistance to change in PH is A. Water B. Buffer C. Heat 68. Stomata possess a pair of parenchyma cells known as A. Guard hooks B. Parenchyma cells C. Guard cells 69. Hydathodes is usually found in A. Gymnosperm B. Angiosperm 70. The scientist that brought about the nucleus is A. Mikel Arteta B. Robert Brown C. Zinidine Zidane D. Roberto Carlos 71. Krebs cycle occurs in the A. Cisture B. Mitochondrial matrix 72. The ETC occurs in the A. Inner mitochondrial membrane B. Outer membrane C. Middle lamella 73. Who stated cells come from previously existing cells A. Richardson B. Richalison C. Theodor schawan D. Rudolf von Virchow 74. The correct sequence for the movement of electrons during light dependent stage of plants is Ans: H20'n P680'n P700'n NADP+ 75. Based on functional classes, the arrangement of the reaction of enzymes is Ans: Oxido-reductases, Transferases, Hydrolases, Lyses, Isomerases, Ligases Key: O-RTHLyIL 76. Organisms that possess a single cell are known to beA. Acellular B. Multicellular C. Unicellular D. Dead. 77. Which pH is most acidic A. 6 B. 7 C. 4.5 D. 1.5 78. Organisms who possess prokaryotic cells are called? A. Anearobes B. prokaryotes C. Bacteria 79. Which of the following pH is strongly acidic A. 4.5 B. 7.8 C. 5.2 D. 1.5 80. All processes which occurs in the cell, take place in____ A. Acidic medium B. alkaline medium C. Aqueous medium D. All of the above 81. Ribosomes were discovered by _____ A. Kolliker B. Robert Hooke C. George PaladeD. Purkinje 82. Which of the following has highest rate of respiration A. Germinating seeds B. Shoot C. Leaf D. Root 83. Which of the following is not true A. Xylem vessels are living cells B. Phloem vessels are dead cells C. Xylem vessels are living cells D. All of the above 84. Water has a boiling point of 100 degree Celsius, this shows that it has A. low density B. high density C. low heat capacity D. high heat capacity 85. Ventilation involves A. photosynthesis and respiration B. excretion and gutation C. inspiration and expiration 86. Which is not a property of water A. solvent property B. freezing property C. none of these D. surface tension 87. 75% of the earth is made of aquatic habitat, this means that it A. support many living organisms B. less living organisms C. no living organism 88. Cappilary movement of water upward from the soil is aided by A. surface tension B. freezing property C. none of these D. thermal property 89. Which of these will increase d acidity when added to a solution A. H+ B. OH– C. CO2 D. H2O 90. pH of 7 is A. slightly acidic B. alkaline C. neutral 91. pH is also? Ans: hydrogen potential 92. How many phosphate ion is gotten in d conversion of 1,3 biphosphoglycerate to glyceraldehyde? A. 2 B. 4 93. Addition of phosphorus in light, either cyclic or non cyclic is know as Ans: photophosphorylation 94. Which is correct about cell wall? A. cell wall is usually made of cellulose B. cell wall is usually made of protein C. cell wall is usually made of lipids 95. Which of these is absent in prokaryotic cell? A. nucleus B. endoplasmic reticulum C. all of these D. lysosome 96. A site specialized in synthesis of lipid will not have one if these in the ER A. mitochondria B. lysosome C. ribosomes D. golgi body 97. In glycolysis, how many ATP is utilized A. 2 B. 4 C. 3 98. Which of these best describes excretion. (know the exact definition) 99. Which best describes transportation? A. movement of materials in living organisms B. movement of materials within the body of living organisms C. movement of materials in solution within the body of living organisms 100. Which organ transports materials gotten from photosynthesis A. vascular bundles B. Phloem C. xylem 101. The main purpose of ETC is? 102. Products of light rxn stage that is used in the Calvin cycle are A. ADP, NADP B. ATP, NADP C. ATP NADPH 103. The pigment used in photosynthesis is found in the A. cytoplasm B. stroma of chloroplast C. thallakoid membrane D. none 104. Respiration occurs with loss of weight in a plant because it is a — A. oxidation process B. reduction process C. isomerization process 105. PS 700 works best at A. low light intensity B. high light intensity C. moderate light intensity 106. 6 mols of CO2 will produce? Ans: 18ATP and 12NADPH 107. Enzymes that function in digestion are generally? A. lygase B. lipase C. hydrolases 108. pyruvate has many fates after glycolysis, in aerobic, it produces? A. C3H5OH B. CO2 and H2O 109. ___ Catalyses conversion of succinate to fumarate A. citrate B. isocitrate dehydrogenase C. succinc dehydrogenase 110. Who proposed the cell theory? A. Scledein and Schwann B. Taylor and Francis 111. Who first names nucleus? 112. Cell theory was formulated in which year? Ans: 1839 113. — is present in plant cell but not in animal cell A. flagellum B. lysosome C. chloroplast 114. The smallest cell is? A. bacteria B. mycoplasma C. yeast D. algae 115. Example of unicellular organisms A. Chlamydomonas B. unirobes C. none 116. Which is a function of cell membrane A. cellulose B. cell rigidity C. none of these 117. Type of endoplasmic reticulum are? A. rough and smooth endoplasmic reticulum B. light and heavy endoplasmic reticulum 118. pH of 8 is? 119. pH of 11.0 is 120. Time for a plant to trap light for photosynthesis or something like that A. 8-12 hrs B. 10-12 hrs C. 11-13 hrs 121. The following are plastids except A. leucoplast B. none of the above C. chloroplast D. chromoplast 122. Which is not correct about respiration? A. converts K.E to P.E B. convert P.E to K.E 123. The types of fibre are the following expect A. microfilaments B. microtubules C. none of the above D. intermediate filament 124. Who discovered compound optical microscope? A. Michael Owen B. Michael Faraday C. Zacharias Jansen D. Rudolf virchow 125. Aquatic organisms excrete through? A. Osmosis B. Diffusion126. Which of these is not a characteristics of freezing property of water A. Low density B. Loosely packed molecules C. Densely packed molecules 127. Cuticles are present in A. All plants B. All terrestrial plants C. All aquatic plants 128. When an ionic compound is dissolved in water, it produce A. Same compound B. New compound C. Inert compound D. None of the above 129. Apoenzyme is A. Inactive protein B. Active protein 130. Enzyme occurs in the protoplasm in form of ___ 131. Photosystem I (700nm) occurs in A. Low light intensity B. High light intensity 132. Which of the following is not a product of light stage reactions A. G3P B. NADPH C. ATP 133. Which enzyme catalyzes non-hydrolytic removal of groups A. Lyases B. Ligases 134. Enzymes are classified into how many groups A. 5 B. 6 135. Acetyl CoA is how many carbon compound A. 2 B. 3 C. 4 140. RUBP contains how many carbon atoms A. 50 B. 60 141. Which of the following is not involved in Krebs cycle A. Lactic acid B. Malate C succinate 142. Krebs cycle occurs in A. Mitochondria matrix B. Mitochondria inner membrane 143. How many molecules of water will be produced from 3 molecules of glucose A. 2 B. 3 C. 1 D. 4 144. Which enzyme is involved in non-hydrolytic reaction? A. Ligases B. Isomerase C. Lyases D.Tranferases 145. Which enzyme group are digestive enzymes A. Ligases B. Isomerase C. Hydrolases D Transferases 146. What is the integral part of cytoplasm A. Nucleoli B Cytosol C All of the above D Matrix 147. Hydathode is found in A. Angiosperm B. Gymnosperm 148. Stomata is boarded by a pair of... A. Guard cell B. Guard tissue 149. What is formed during protein metabolism in plants A. Carbon dioxide B. Nitrogenous compound 150. Metabolism is the name given to all ___ processes A. Chemical B. Physical C. All of the above 151. The mineral nutrients move by ___ in plants A. Active transport B. Diffusion C. Diffusion or active transport Answers 1. C 2. Acetaldehyde (CH3COH)+ NADH+ H+ 3. B 4. C 5. B 6. C 7. C 8. C 9. B 10.B 11. A 12. Robert Hooke 13. A 14.C 15. A 16. D 17. B 18. 1779 19. C 20.A 21.B 22. C 23. A 24. B 25. C 26. A 27. B 28. D 29. C 30. A 31. B 32. A 33. A 34. B 35. C 36. Terrestrial plant 37. C 38. Neutral 39. Buffer 40. A 41. Redox 42. Mitochondria 43. Angiosperm 44. Short wavelength 45. Active transport and diffusion 46.plasmid 47. Nucleus, chloroplasts,and mitochondria 48. Highly acidic 49 ostrich egg 50.D 51 Rough and smooth Er 52 A 53 C 54 A 55 A 56 B 57 B 58 D 59 C 60 B 61 D 62 C 63 A 64 B 65 C 66 D 67 B 68 C 69 A 70 B 71 B 72 A 73 D 74 H2O'n P680'n P900'n NADP+ 75 Oxidoreductases, Transferases, Hydrolase, lysase, Isomerase, Ligase 76. C-unicellular Reason: there are two types of organism based on the difference between cells 1. Unicellular organism is made of one cell that perform all the characteristic of cell or living e.g. protist, algae and some bacteria 2. Multicellular is an organism that consists of more than one cell e.g. human, dog and tree 77. D-1.5 Hint: The lower a number, the higher its acidity and the lower its basicity while the higher the pH number, the lower it is acidity and the higher its basicity. However, at pH 7, it is neither acidic nor basic but NEUTRAL 78. B-prokaryotes Reason: cells are divided into 2 based on the difference of nuclear membrane 1. Prokaryote- has no nuclear membrane e.g. Blue-algae and Bacteria 2. Eukaryotes- has nuclear membrane e.g. tree and dog 79. D Hint: The lower a number, the higher its acidity and the lower its basicity while the higher the pH number, the lower it is acidity and the higher its basicity. However, at pH 7, it is neither acidic nor basic but NEUTRAL 80. C- Aqueous medium Reason: Most cellular processes occur in an aqueous medium because water acts as a solvent, enabling biochemical reactions. While pH levels can vary, the water-based environment is essential for cellular functions. 81. C 82. A. Germinating seeds Reason: Germinating seeds have the highest rate of respiration because they require a large amount of energy to fuel growth and development during the early stages of germination. This energy is provided by increased respiration. 83. D-All of the above** Reason: None of the options are true because: Xylem vessels are **dead cells** at maturity, not living cells. Phloem vessels contain both living and non-living components; phloem sieve tubes are living cells, while companion cells assist their function. 84. D-HIGH SPECIFIC HEAT CAPACITY Reason: Water's boiling point of 100°C indicates that it can absorb a significant amount of heat before its temperature rises substantially. This property is due to its high heat capacity, which allows water to store and release heat efficiently without drastic changes in temperature. 85. C-INSPIRATION AND EXPIRATION Reason: Ventilation refers to the process of moving air into (inspiration) and out of (expiration) the lungs. This process ensures the exchange of oxygen and carbon dioxide in the body during respiration. 86. C-NONE OF THESE Reason: All the listed options (solvent property, freezing property, and surface tension) are properties of water. Water is known for its ability to dissolve many substances (solvent property), its unique freezing point (freezing property), and its high surface tension. Therefore, none of these options are incorrect properties of water. 87. A- SUPPORT MANY LIVING ORGANISMS Reason: The fact that 75% of the Earth is covered by aquatic habitats means there is a vast environment that supports a diverse range of living organisms. Aquatic habitats, including oceans, seas, and freshwater bodies, are rich in biodiversity and provide essential resources and habitats for numerous species. 88. A-SURFACE TENSION Reason: Capillary movement of water upward from the soil is aided by surface tension. Surface tension allows water to move through small pores in the soil and plant tissues, facilitating its ascent against gravity through capillary action. 89. A-H+ Reason: Adding hydrogen ions (H+) to a solution increases its acidity. The concentration of hydrogen ions in a solution determines its pH level, with higher concentrations leading to more acidic conditions. 90. C-NEUTRAL Reason: A pH of 7 is considered neutral. This means the solution is neither acidic nor alkaline, as it has an equal concentration of hydrogen ions (H+) and hydroxide ions (OH–). 91. Hydrogen Potential REASON: pH stands for "potential of hydrogen" or "hydrogen potential." It measures the concentration of hydrogen ions (H+) in a solution, which indicates its acidity or alkalinity. 92. A-2 Reason: In the conversion of 1,3-bisphosphoglycerate to glyceraldehyde-3-phosphate (G3P) during glycolysis, two phosphate groups are removed. One phosphate is released as inorganic phosphate, and the other is used to form ATP. 93. photophosphorylation Reason: Photophosphorylation is the process by which ATP is produced from ADP and inorganic phosphate (Pi) using the energy of light. This occurs in the chloroplasts during the light-dependent reactions of photosynthesis. 94. A- CELL WALL IS USUALLY MADE OF CELLULOSE Reason: In plant cells, the cell wall is primarily composed of cellulose, a polysaccharide that provides structural support and rigidity. Cell walls in other organisms may contain different materials, such as chitin in fungi and peptidoglycan in bacterial cell walls, but cellulose is the most common component in plant cell walls. 95. C- ALL OF THE ABOVE Reason: Prokaryotic cells lack a defined nucleus, endoplasmic reticulum, and lysosomes. They have a simpler structure compared to eukaryotic cells, with no membrane-bound organelles. Instead, their genetic material is found in a nucleoid region, and they rely on simpler cellular structures to perform necessary functions. 96. C-RIBOSOME REASON: Smooth Endoplasmic Reticulum is the site for the synthesis of the lipid and the ribosome is not attached to it as it were attached to the rough endoplasmic reticulum 97. A-2 Reason: In the glycolysis process, 2 ATP molecules are utilized in the initial steps to phosphorylate glucose and its derivatives, which helps in the breakdown of glucose into pyruvate. This investment is part ofB the energy-requiring phase of glycolysis. 98. EXCRETION Definition: Excretion is the biological process of eliminating metabolic waste products and substances that are in excess from an organism's body, thereby maintaining internal homeostasis. This includes the removal of substances like urea, carbon dioxide, and other metabolic waste. - But your lecture note matters a lot. 99. B- movement of materials within the body of living organisms Reason: Transportation refers to the movement of materials, such as nutrients, gases, and waste products, within the body of living organisms. This process ensures that essential substances are distributed to cells and tissues and that waste products are removed. 100. B-PHLOEM Reason: Phloem is the vascular tissue responsible for transporting the products of photosynthesis, primarily sugars (such as sucrose), from the leaves to other parts of the plant. It distributes these nutrients throughout the plant to support growth and development. 101. To produce ATP 102. C [ATP and NADPH] 103. Thylakoid 104. A [Oxidation process] 105. B [High light intensity] 106. 18 ATP & 12 NADPH 107. C [hydrolases] 108. B [CO2 & H20] 109. C [Succinate dehydrogenase] 110. A [Schleidin and Schwan] 111. Robert brown 112. 1839 113. C [Chloroplast] 114. B [Mycoplasma] 115. A [Chlamydomonas] 116. C [None - cell membrane functions to protect and enhance exchange of materials into and out of the cell] 117. A [Smooth and rough endoplasmic reticulum] 118. Slightly Basic 119. Basic 120. B 10 -12 hours 121. B [None - all the listed options are plastids] 122. A [PE to KE] 123. C [None] 124. C [Zacharias Jansen 16th century] 125. Diffusion 126. C 127. B 128. B 129. A 130. Holoenzyme 131. A 132. B 133. A 134. B 135. A 140. 5 carbon 141. A 142. A 143. Gba options 144. C 145. C 146. B 147. B 148. A 149. A 150. A 151. C Questions and Answers were brought to you on behalf of Sui Generis Class by: Fatoki Miracle Ahmed Shukroh Elegbede Imoleoluwa Ayanokouji Kiyokata Abdulakeem Jimoh Heisenberg Dr_Emrys  XANTHRONS’ PLB 101 CA 1. PLB 101 1. Who discovered compound optical microscope? A. Michael Owen B. Michael Faraday C. Zacharias Jansen D. Rudolf virchow ANS: C 2. Who found out that new cells arise from preexisting cells? A. Mathias scheiden B. Theodore Schwann C. Rudolf virchow D. Anton leuwenhoek ANS:C 3. pH is also call A. Alkalinity B. Basicity C. Hydrogen potential D. Hydrogen ANS:C 4. Organisms who possess prokaryotic cells are called? A. Anearobes B. prokaryotes C. Cyanobacteria D. Bacteria ANS: B 5. How many ATP is used in the Calvin cycle A. 3 B. 2 C. 1 D. 4 ANS : 3 ATP is used for a single turn of calvin cycle 18 ATP is used in total 2 (How many time is ATP used in calvin cycle) 6. Metabolism is the name given to______ processes that occur in the body of an organism A. physical B. chemical C. Biogeochemical D. All ANS:B 7. The following posses eukaryotic cells except A. plants B. Fungi C. cyanobacteria D. Animals ANS: C  8. Which of the following pH is strongly acidic A. 4.5 B. 7.8 C. 5.2 D. 1.5 ANS:D 9. The following are true, except? A. PSII has an absorption peak of 680nm B. DHAP is a 2 carbon compound C. PSI had an absorption peak of 700nm D. PGA is a 3 carbon compound. ANS: B 10. High energy photons A. Have short wavelength B. Absorb blue before red light C. Have long wavelength D. Absorb red before blue light ANS : A 11. The energy produces in aerobic respiration is? A. 886J B. 686J C. 586J D. 226J ANS: 686Kcal 12. What is the grand substance of the cell? A. Cytosol B. Nucleoli C. ER D. all of the above ANS : A 13. All processes which occurs in the cell, take place in____ A. Acidic medium B. alkaline medium C. Aqueous medium D. All of the above ANS: C 14. After glycolysis, in aerobic respiration pyruvate enters the Krebb's cycle as...... A. Ethanol + O2 B. AcetylcoA + CO2 C. Lactic acid + H2O D. Lactic acid + CO2 ANS: B 2. Photosynthesis was proposed in what year? A. 1839 B. 1880 C. 1855 D. 1898  ANS: D 3. Ribosomes were discovered by _____ A. Kolliker B. Robert Hooke C. George Palade D. Purkinje ANS:C 4. An Organism that divides by fission is ______ A. Bacteria B. Fungi C. Fungi and bacteria D. None of the above ANS:A(some fungi also divides by fission) 5....... I'm not too sure about the structure of the question, I heard it from Dr. Shakes. 6. The solvent property of water is due to the _________ arrangement of its hydrogen and oxygen atom A. Spatial B. Asymmetrical C. Linear D. All of the above ANS: B 7. The products of light dependent that are to be used in the Calvin cycle are A. ADP and NADP B. ADP and NADPH C. ATP and NADP D. ATP and NADPH ANS :D 8. Which of the following is the function of the cell membrane A Cell rigidity B cell integrity C all of the above D I can't remember ANS: C 9. 10. Cell membrane contains A. Carbohydrate and protein B. Protein and lipids C. Lipids D. Carbohydrate ANS:B 11. Transportation of water and some mineral nutrients in higher plant is by A. Vascular bundle B. Xylem C. Phloem D. Cambium ANS :B 12. Which of the following has highest rate of respiration A.Germinating seeds B. Shoot C Leaf D Root ANS :A 13. Plastids consists of  a. Chromoplast b. Leucoplast c. Chloroplast d. None of the above e. All of the above ANS: E 14. Which enzyme converts polypeptides to amino acid A.pepsin B.erepsin C.None of the above ANS: B 15. Who found out that cell are formed from preexisting cells Rudolf Virchow None of the above All of the above Buhari ANS: A 16. After absorbing photons, the excited electrons move from a lower energy level to a higher energy level This electrons belong to A. Chlorophyll B. Water C. ATP D. Can't remember ANS: A 17. How many phosphate is in 30 molecules of ribulose- 1,5- bisphosphate? A. 30 B.60 C.120 D.100 ANS: B 38. Which of the following does not catalyse protein A. Pepsin B. Catalase C. Peptidases D. Trypsin ANS : B 39. Which of the following is not true A. Xylem vessels are living cells B. Phloem vessels are dead cells C. Xylem vessels are living cells D. All of the above ANS: D 40. The jelly like fluid portion of the cell is A. Cytoplasm B. Mitochondria C. None of the above ANS : A 41. Aquatic organisms excrete through? A. Osmosis B. Diffusion ANS: B 42. Aquatic organisms are preserved at the bottom of the sea when water freezes because A. Ice sinks B. Ice floats on water ANS: B (freezing property) 43. Which of these is not a characteristics of freezing property of water A. Low density B. Loosely packed molecules C. Densely packed molecules ANS :C ( ice have lower density(not densely packed molecules) compared to water at 4°C hence it float) 44. Passage of water from area of low concentration through a semi permeable membrane to area of high concentration A. Diffusion B. Osmosis C. Active transport D. God abeg ANS :B 45. Which of the following best describes transport A. Transport involves movement of materials B. Transport involves movement of materials within living organisms C. Transport involve movement of materials in liquid form in living organisms ANS: B 46. Hydathodes are found in A. Roots B. Leaves  C. Leaf tip D. Stem ANS:C 47. Cuticles are present in A. All plants B. All terrestrial plants C. All aquatic plants ANS: B 48. When an ionic compound is dissolved in water, it produce A. Same compound B. New compound C. Inert compound D. None of the above ANS: A 49. Double membrane organelles are A. None of the options B. Endoplasmic reticulum C. Golgi bodies and lysosome D. Nucleus, chloroplast, mitochondria ANS: D 50. Name an organism that reproduces by binary fission and budding A. Primitive organisms B. Unicellular organisms C. Eucaryotes D. Prokaryotes  ANS: D 51. How many molecules of water will be produced from 3 molecules of glucose A. 2 B. 3 C. 1 D. 4 ANS: None of the above (18molecules of water will be produced) 52. Metabolism can be divided into A. 1 B. 2 C. 3 D. 4 ANS: B (Anabolism and catabolism) 53. The isomer of glyceraldehyde-3-phosphate is A. 3-phosphate B. Dihydroxyacetone phosphate C. Adenine phosphate ANS: B 54. Holoenzyme is what? A. Inactive protein B. Active protein and cofactor C. Inactive protein and cofactor D. Active protein enzyme ANS: C smells good cause holoenzyme consist of Apoenzyme (proteinous part) and cofactor 55. Which of the following is a digestive enzyme?  A. Ligases B. Hydrolases C. Lyases D. Transferases ANS: B 56. Enzymes are the following except A. Macromolecules B. Insensitive to poison C. Catalysts D. Specific ANS: B 55. Cell membrane contains A. Lipid only B. Lipid and protein C. Lipid and carbohydrates D. Forgotten ANS: B 56. Without Oxygen, the following can proceed except? i. pyruvate - lactate ii. pyruvate - alanine iii. Krebs cycle iv. fermentation ANS: iii 57. Dehydrogenation of alcohol using alcohol dehydrogenase gives A. Acetone B. Aldehyde C. Metanoic acid ANS: B(acetaldehyde) 58. Which of these is most strongly acidic. A. 1.5 B. 2.5 C. 3.5 D. 4.5 ANS: A 59. Vacuole in plant is A. Non membranous B. Membranous and stores lipids and protein C. Membranous and stores material and secret them ANS: C 60. Who discovered nucleus A. Roberto Carlos B. Robert Brown C. None of the above D. Mikel Arteta ANS: B 61. The most important part of cytoplasm A. a.nucleus B. b.cytosol C. c.water ANS: B 62. Which of the following is not membrane bound? A. Chloroplast B. Nucleolus C. None of the above ANS: B 63. The energy rich organic compound produced in Calvin cycle is ____ A. C3H6O3 B. NADPH C. ATP ANS: A 64. Non hydrolytic removal of bond is catalyzed by which enzyme A. Ligases B. Lyases C. Hydrolases D. Isomerases ANS: B 65. High heat capacity of water is due to.... Arrangement of oxygen and hydrogen atoms a. Spatial b. Asymmetrical c. Linear d. None of the above ANS: B 66. Apo enzymes are  A. inactive proteins B. active proteins C. inactive protein+ cofactor D. I can't remember ANS: A 67. Plants excrete nitrogen through the following except A. Leaves B. Fruits C. Bark D. Stem ANS: B 68. Photosynthesis is a _______ A. Oxidation reaction B. Oxidation-reduction reaction C. Reduction reaction D. None of the above ANS: C 69. How many turns of the Calvin cycle is required to produce 1 molecule of 3- phosphoglyceradehyde? A. 2 B. 4 C. 3 D. 5 ANS: C 70. The energy production stage in glycolysis is which of the following? A. Glucose-----> Glucose-6-phosphate B. Glucose-6-phosphate -----> Fructose  C. 2Phosphoenolpyruvate -----> 2pyruvate D. 3- phosphoglycerate -----> 2-phosphoglycerate ANS: C 71. How many stages produce ATP during glycolysis? A. 4 B. 1 C. 2 D. 3 ANS: C 72. How many ATP is used in 2 turns of the Calvin cycle? A. 6 B. 4 C. 7 D. 3 ANS: A 73. How many CO2 is produced per glucose molecule at the end of Kreb's cycle? A. 4 B. 2 C. 6 D. 3 (ANS should be A(4) if we are not to count the CO2 lost in the linking process) But the general equation given to us by the lecturers have cause confusion whether conversion of pyruvate to acetyl coA is part of kreb cycle 74. Translocation occurs through what process A. Diffusion B. Osmosis C. Active transport  D. Active transport and diffusion ANS: B (P.S : Phloem loading is by active transport ) 75. Phloem transports nutrients and products of photosynthesis in ______ A. Upward direction B. Downward direction C. All directions D. None of the above ANS: C 76. Compound optical microscope was discovered by who? A. Michael faraday B. Michael Owen C. Zacharias Janssen D. Tye Sheridan ANS: C 78. What organelle is known as the power house of the cell? A. Nucleus B. Mitochondria C. Golgi Apparatus D. Ribosomes ANS: B 79. What organelle is known as the energy house of the cell? A. Chloroplast B. Nucleus C. Mitochondria D. Golgi apparatus  ANS: C 80. The product of ethyl alcohol fermentation is _____ A. Acetoacetate B. Acetaldehyde C. Lactic acid D. Pyruvate ANS:B(first product is acetaldehyde which later form ethyl alcohol) 81. How many classes are enzymes grouped into? A. 6 B. 7 C. 5 D. 8 ANS: A 82. Which of the following enzymes is not involved in protein metabolism? A. Catalase B. Protease C. Pepsin D. Trypsin ANS: A 83. The electron transport system (ETS) occurs in what part of the mitochondria? A. Inter-membrane space B. Inner membrane C. Matrix of the mitochondria D. Outer membrane ANS: B 84. The organelle that is responsible for intracellular transport is the ____  A. Golgi apparatus B. Microtubules C. Endoplasmic reticulum D. Nucleolus ANS: A 85. The only point in the Tricarboxylic acid cycle where NADH is produced without the production of CO2 is _____ A. Alpha-ketoglutate----->succinyl CoA B. Succinate -----> Fumerate C. Pyruvate -----> Acetyl CoA D. Malate -----> Oxaloacetic acid ANS: D 86. What is the value of energy produced during anaerobic respiration? A. 78kcal B. 72kcal C. 65kcal D. 56kcal ANS: D 87.The final electron acceptor in the Electron transport system (ETS) is _____ A. Oxygen B. Nitrate ion C. Nitrous oxide D. Nitrogen gas ANS: A  COMPILED BY TRIPLEHAY (09038634254) PLB 101 COMPILED C.A QUESTIONS, 2021/22 SESSION (TRIPLEHAY) 1. Which of the following is not an organ of plant? a) Epidermis b) Stomata c) Lenticels d) Cuticle. 2. pH of 1.5 is a) Highly acidic b) Neutral c) Alkaline d) Acidic. 3. pH of 7 is a) Neutral b) Acidic c) Alkaline d) Highly neutral. 4. Enzyme is in what form? a) Colloid b) Emulsion c) Suspension d) Globules. 5. The capacity of water is due to arrangements in a) Asymmetrical b) Linear c) Spatial d) Spindle. 6. Excess water is excreted out in what form? a) Diffusion b) Osmosis c) Transpiration. 7. Ventilation is ____ and ____ a) Respiration and photosynthesis b) Guttation and excretion c) Anaerobic and Aerobic d) Inhalation and exhalation. 8. Enzyme of digestion is under a) Lyase b) Ligase c) somerase d) Hydrolases. 9. Who discovered Ribosome? 10. Who's the first scientist to discover cell? 11. A cytologist can also be called? 12. Which of these is not found in prokaryotic cells? A. None of the options B. Lysosomes C. Nucleus D. Endoplasmic reticulum. 13. Which of the following is the correct sequence A. H2O a NADPH a 680 a 700 B. H2O a 680 a 700 a NADP C. 700 a 680 a NADPH a H2O D. none of the above. 14. The photosynthetic pigments are present in which parts of the cell A. Cytoplasm B. Nucleus C. Stroma of the chloroplast D. Thylakoid of the chloroplast. 1|Page  COMPILED BY TRIPLEHAY (09038634254) 15. Vacuole is a ____ a) Membranous organelle which contains lipids b) Non- membranous organelle which contains proteins c) Membranous organelle which contains both lipids and proteins d) Non-membranous organelle which contains lipids and proteins. 16. Who proposed the cell theory? A. Schawnn and Mathias B. Darwin and hookes C. none of the above D. all of the above. 17. Who discovered the nucleus? A. Robert brown B. Charles Darwin C. Charles newton D. none of the above. 18. Which of the following is also a waste product alongside CO2 in respiration A. water vapor B. liquid water C. oxygen D. glucose. 19. Carbon fixation occurs where A. cytoplasm B. stroma C. thylakoids D. cytosol. 20. Hydathodes are found in A. Stems B. Roots C. Leaf tips. D. Leaf. 21. Which of the following is the most acidic A. 1.5 B. 2.5 C. 3.5 D. 4.5. 22. How many ATPs are produced in glycolytic pathways A. 1 B. 2 C. 3 D. 5. 23. Enzymes are classified into A. 6 B. 7 C. 4 D. 5. 24. Cellular respiration occurs in how many stages A. 2 B. 4 C. 3 D. 5. 25. Which of the following is not true about the characteristics of water A. High heat capacity B. Low heat capacity C. Universal solvent. 26. Which of the following does not have a cell membrane? A. Nucleolus B. Golgi body C. Lysosomes D. Mitochondria. 27. The term cell was first used by A. Robert Hooke B. Matthias Schleiden C. Robert Brown. 2|Page  COMPILED BY TRIPLEHAY (09038634254) 28. The jelly like fluid in the cell is the A. Cytoplasm B. Ribosomes C. Lysosomes. 29. Examples of unicellular organism. 30. What's the end product of Calvin cycle? 31. Photosynthesis was proposed in which year? 32. The major difference between the cell in the human cheek and that of an onion is A. Human cheek has cell wall while onions doesn't have. B. Human cheek has vacuoles while onions doesn't C. Onions has cell membrane while the human cheek doesn't D. Onion cell has cell wall while the human cheek does not. 33. Another name for apoenzyme is ____ 34. The oxygen produced in photosynthesis is from? 35. 10 molecules of RuBP will give how many carbon? a) 50 b) 60 c) 70 d) 80. 36. What is another name for cell membrane? 37. Transfer of electron in ETC results in the release of ____ a) Hydrogen b) Electron c) Proton d) Oxygen. 38. In how many points is ATP used in respiration? a) 1 b) 2 c) 3 d) 4. 39. Conversion of ATP and NADPH to ADP^ and NAD takes place in a) Cyclic phosphorylation b) Light dependent c) Light independent d) Non-cyclic phosphorylation. 40. Organism are able to survive at the bottom of water due to ____ 41. When the pH value is 8.3, the substance is a) Acidic b) Alkalinity c) Neutral. 42. The cytoplasm is made up of ____ & ____ 3|Page  COMPILED BY TRIPLEHAY (09038634254) 43. What group of plants does hydathodes belong to? A. Angiosperms B. Gymnosperms C. Bryophytes D. None of the above. 44. Which of the following cannot take place in the absence of oxygen A. Conversion of Pyruvate to lactic acid B. Conversion of Pyruvate to Alanine C. Krebs cycle. 45. Plasma membrane is made up of A. Proteins only B. Carbobydrates and lipids C. Lipids only D. Proteins and lipids. 46. Which of these does not take place during respiration? A. Absorption of oxygen B. Removal of CO2 C. Conversion from kinetic energy to potential energy D. Conversion from potential energy to kinetic energy. 47. Functions of guard cells include ____ 48. Products of Pyruvate in aerobic condition 49. Function of the stomata include ____ 50. The ability of liquid to compress and fit in containers is termed? A. Surface tension B. Thermal property C. Heat compressibility. 51. How many stages occur during glucose metabolismA. 1B. 2C. 3D. 4E.5. 52. Functions of vacuole 53. In a normal condition in photosynthesis, the following are correct except a) Liberate CO2 b) Convert Kinetic energy to potential energy c) Convert potential energy to kinetic energy d) Absorbed oxygen. 54. A holoenzyme is A) An Enzyme with a cofactor B) A protein with a prosthetic group C) A protein with a coenzyme. 55. Cell is made up of how many % of water? a) 50-60 b) 60-70 c) 70-80 d) 80-90. 4|Page  COMPILED BY TRIPLEHAY (09038634254) 56. How many pigment system is in non cyclic phosphorylation? a) 1 b) 2 c) 3 d) 4. 57. Which of the following is correct? a) Phloem is located inside b) Xylem is located in the outside c) Phloem is located in the outside d) None is correct. 58. Which of these is incorrect about property of water A. freezing B. thermal C. Universal solvent D. None of the above. 59. ____ is the smallest unit of life a. Vacuole b. Organ c. Cell d. All of the above. 60. Which of these is not membrane bound? A) Endoplasmic reticulum B) Ribosome C) Nucleolus D) Mitochondria. 61. Which one is more acidic? a) 3.5 b) 2.5 c) 4.5 d) 1.5. 62. Those who study cell division, also cytology are called a. Embryology b. Cell biologist c. None of the above d. Musician. 63. Function of ribulose 64. What's the NADPH produced when 18ATP is used a. 42 b. 12 c. 36. 65. Which is part of the proteins a) Micro tubules b) Micro filament c) Intermediate filament d) All of the above. 66. Photosynthesis was invented in which year a) 1898 b) 1888 c) 1890. 67. Which of the following is double membrane bounded organelles a) Endoplasmic reticulum b) Golgi body c) Mitochondria d) nucleus e) chloroplast. 68. Xylem transport water and mineral nutrients in what direction? a. Upwards b. Downwards c. All directions d. Left. 69. Photosystem 1 (ps1) is triggered by A. None of the above B. Higher light energy C. Lower light energy. 5|Page  COMPILED BY TRIPLEHAY (09038634254) 70. Blue-green algae are? a) prokaryotic b) eukaryotic c) none of the above d) all of the above. 71. Cell Wall contains A. proteins B. starch C. Cellulose. 72. Cell theory was stated when A. 1829 B. None of the above C. 1839 D. all of the above. 73. Prokaryotes lack ____ A. Nucleus B. Lysosomes C. Mitochondria D. Endoplasmic reticulum. 74. The higher the pH, the higher the a) Acidity b) Alkalinity c) Neutrality. 75. Which of the following has a single membrane a) Nucleus b) Endoplasmic reticulum c) Ribosome. 76. Which egg is the biggest a. Ostrich egg b. Lizard egg c. Duck egg d. Hen egg. 77. Who invented optical microscope? 78. What takes place in light reactions a) chemosmosis b) liberation of O2 c) photolysis d) all of the above. 79. Prokaryotic organisms are called ____ 80. The outer boundary of the cell is ____ a) plasma membrane b) nuclear membrane c) none of the above. d) cytoplasm. 81. Organisms with a single chromosome which reproduce by fission or budding are called? a) prokaryotes b) bacteria c) algae. 82. How many types of metabolism do we have? A. 5 B. 4 C. 2 D. 3. 83. What's the function of RuBisCO? 6|Page  COMPILED BY TRIPLEHAY (09038634254) 84. Where is 'ATP & NADPH' formed? 85. ____ regulates the movement of materials in and out of the cell? 86. The Earth is composed of ____% of water? 87. Oxidative phosphorylation gives rise to A. NADH B. ATP + H20 C. ADP. 88. pH is A. Potential hydrogen B. Hydrogen potential. 89. What is the the power house of a cell called A. Cytoplasm B. Endoplasmic reticulum C. Mitochondria D. Golgi body. 90. Enzymes can be classified into how many groups A. 6 B. 5 C. 4 D. 3. 91. A pH of 8.5 is ____ A. Acidic B. Neutral C. Basic D. None of the above 92. The enzymes that catalyse non hydrolytic reactions are called A. Isomerases B. Oxidoreductases C. Lyases D. Ligases. 93. Who concluded that cells come from pre existing cells? A. Robert Hooke B. Rudolf Von Virchow C. Theodor Schwann D. Matthias Schleiden. 94. The cell membrane is made up of A. Carbohydrate only B. Protein and Carbohydrate C. Lipid only D. Protein and lipids. 95. Which of the following is a plastid? A. Chloroplast B. Chromoplast C. Leucoplast D. None of the above. 96. The lower the pH value, the stronger the _____ A. All of the above B. Alkalinity C. Neutrality D. Acidity. 97. The types of endoplasmic reticulum are a) smooth & rough b) straight & curved c) smooth & linear d) rough & curved. 7|Page  COMPILED BY TRIPLEHAY (09038634254) 98. How many ATP is produced during Calvin cycle? 99. FADH is produced during which process? 100. Metabolism is a type of ____ reaction A. Chemical B. Physical C. Biological D. none of the above. 101. Eukaryotic cells are found in ____ 102. The light reaction stage of photosynthesis takes place in the membranes of small sac called a) grana b) thylakoids c) chloroplast d) photosystems. 103. Which energy-riched organic compound is produced as a result of the Calvin cycle? a) H2O b) ATP c) NADPH d) C6H12O6. 104. The arrangement of water molecule is A. Spatial B. Linear C. Asymmetrical D. None of the above. 105. What's the carbon atom of two molecules of RuDP? 105. Which year was the first cell theory postulated? 106. Which of the following is not a major excretory product of plant? A. Water Vapour B. CO2 C. Excess water D. Water. 107. How many rounds of Calvin cycle is required to produce 1 mole of 3 carbon phosphoglyceric acid? a) 1 b) 2 c) 3 d) 4. 108. Water and nutrients move up the root hairs through? a) Transpiration b) Osmosis c) Diffusion. 109. Which of the following is not involved in the movement of water molecules through root hairs? a) Transpiration b) Osmosis c) Cohesive and adhesive forces d) Diffusion. 8|Page  COMPILED BY TRIPLEHAY (09038634254) 110. Eukaryotic cells are contained in which of the following organisms? A. Plants and animals B. Protista C. Fungal D. All of the above. 111. Function of nucleus A. coordination sctivities B. Power house C. site for protein synthesis. 112. Translocation is the process by which A. Xylem transports water upward B. Products of photosynthesis is transported through phloem C. Phloem transport water D. Xylem transport product of photosynthesis. 113. Which of the following is a waste product of respiration a) O2 b) CO2 c) ATP. 114. Nitrogen is not found in a) Fruits b) Bark c) Stem d) Leaves. 115. Ribulose-5-phosphate has how many carbon molecules A) 10 B) 20 C) 50 D) 60. 116. Which of these is responsible for intracellular digestion A) Ribosome B) Vacuoles C) Golgi body. 117. Transportation of water dissolved nutrients from the root is done A) radially B) laterally C) upwards D) None of the above. 118. Organisms that are made up of aggregate of cells are A) unicellular B) conjugate C) Multicellular D) Biocellular. 119. 154. In how many point is ATP use in Calvin cycle? a) 1-2 b) 2-3 c) 3-1 d) 4-4. 120. ATP used in photosynthesis is produced through A. Oxidative phosphorylation B. Reductive phosphorylation. 121. Cuticle is used in the excretion of which of the following A. Gum B. CO2 C. O2 D. Water. 9|Page  COMPILED BY TRIPLEHAY (09038634254) 122. Which of the following is correct? A. Xylem tissues are made up of living cells. B. Xylem tissues are made up of dead cells C. Phloem tissues are made up dead cells D. None of the above. 123. Which of the following is the most appropriate? A. Transportation is the movement of materials in the body of an organism B. Transportation is the movement of materials C. Transportation is the movement of materials in solution in the body of an organism D. Transportation is movement. 124. How many molecules of CO2 is found in 30 molecules of Ribulose 1,3-biphosphate? A. 60 B. 150 C. 2 D. 50. 125. Which of the following is the most appropriate? A. Excretion is the removal of wastes from the body B. Excretion is the removal of wates product of metabolism and other non useful products from the body C. Excretion is the removal of wastes products of metabolism D. Excretion is the process of removing wastes. 126. Respiration takes place in the cytoplasm of A. Prokaryotes B. Plants and Animals C. None D. Cells. 127. The light used by plants A. Red and yellow B. Infrared and violet C. Red and blue D. Red and violet. 128. Electron transport chain (ETC) takes place in the A. Cell membrane B. Inner mitochondria membrane C. Outer membrane D. Nucleus. 129. Enzymes that form single bond by the non-hydrolytic means A. Lyases B. Ligases C. Hydrolases D. Isomerases. 130. The following are types of filament except A. Microtubules B. Micro C. Micro filaments D. Intermediate filament. 10 | P a g e  COMPILED BY TRIPLEHAY (09038634254) 131. Production of one molecule of glyceraldehyde-3 phosphate involves how many turns of the Calvin cycle? A.1 B.2 C.3 D.4. 132. Which of the following is a function of the cell membrane? A. It defines the cell boundary B. It is important in intracellular connectivity. C. It defines the cell integrity. D. All of the above. 133. H2O has ____ A. +ve charge only B. -ve charge only C. +ve and -ve charges D. None of the above. 134. Which of the following are double membrane bound organelles A. Lysosome, golgi bodies B. Mitochondria, chloroplast, nucleus C. Lysosome, ER D. None of the above. 135. What is the function of ice floating on water? A. To maintain topography B. To preserve the organisms living at the bottom of the ocean. 136. The integral part of the cytoplasm is known as? A. Cytosol B. Nucleoli C. Nucleus D. All of the above. 137. How many ATP and NADPH is required to reduce CO2 to glucose via photosynthesis A.12 ATP & 12 NADPH B.12 ATP & 18 NADPH C.18 ATP & 12 NADPH D. 6 ATP & 12 NADPH. 138. Example of organelle present in plant cell and absent in animal cell. 139. When a compound is dissolved in water, it produces A. Same compound B. different compound C. inert molecules D. None of the above. 140. The cytoplasm can also be called A. nuclear membrane B. plasma membrane C. all of the above D. none of the above. 141. In chemiosmosis, ____ is the co-effecient gradient? a. Na+ b. H+ c. O2 d. none of the above. 11 | P a g e  COMPILED BY TRIPLEHAY (09038634254) 142. All these are true of enzymes except A. specificity B. Catalyst C. Insensitive to poison. 143. Photosynthesis is essentially A. oxidation and reduction reaction B. Reduction reaction C. Oxidation reaction D. None of the above. 144. Which of the following is not multicellular A. animal B. human C. plant D. bacteria. 145. The correct sequence of movement of electron during light dependent reaction. 146. Which of the following contains genetic materials A. cytoplasm B. Nucleus C. None of the above. 147. Living organisms can only survive through A. Narrow range temperature B. Wide range temperature C. None of the above. 148. The cell membrane is majorly A. Carbohydrates only B. Carbohydrates & protein C. Proteins & lipids D. Lipid and carbohydrates. 149. During the condensation of 3 molecules of glucose , how many moles of water is eliminated? A.1 B.2 C.3 D.4. 150. During metabolic reaction with protein, which of the following is excreted A. Gum B. Nitrogenous compound C. Latex. 151. Glycolysis occurs in A. Cytosol B. Matrix C. Nucleus D. None of the above. 152. During respiration, which of the following is false A. Potential energy is converted to kinetic energy B. Kinetic energy is converted to potential energy C. Oxygen is absorbed D. CO2 is released. 12 | P a g e  PLB 101 1. Which if the following is not a morphological variation a. skin color b. eye color c. height d. color blindness ans: D 2. How many G3P will be produced from the synthesis of 2 carbons dioxide molecule? a. 4 b.3 c.2 d.1 ans: A 3. What cell organelle has few ribosomes, circular DNA and phosphate in the inner part (something like this)? a. plastids b. nucleolus c. nucleus d. mitochondria ans: D 4. Plants absorbs mineral nutrient from soil by a. diffusion or active transport b. osmosis c. diffusion ans: A 5. How many percent of water is found in cells? a. 70-80% b. 80-90% c. 60% ans: B 6. Plants excrete wastes in how many ways a. 4 b. 3 c. 2 d.1 ans: B 7. Plants absorbs water from soil by a. root b. root cells. c. root hairs d. none of the options ans: C 8. Energy is degraded in cellular respiration by a. ADP b. pyruvate c. CO2 and H20 d. none of the options ans: 9. In the 3 cellular respiration, how many FAD is used? a. 0 b.1 c.2 d.4 ans: C 10. Glycolysis is also known as a. none of the option b. Embden Meyerhoff Paranas pathway c. Embeden Meyerhoff Paranas pathway d. Embden meyerhoff pathway ans: A 11. Calcium and magnesium pectate is found in a. cell wall b. cell membrane c. middle lamella ans: C 12. Organ used by animals for transportation A phloem B heart C kidney D xylem ans: B 13. In the conversion of glucose-6-phosphate to fructose-6-phosphate, what catalyzes the reaction a. ATPase b. ATP + Isomerase c. Isomerase d. None of the options ans: C 14. End product of Krebs cycle is a. Glycine b. malic acid c. oxaloacetate d. fumarate ans: C 15. Cellular respiration involves a. Guttation b. Diffusion c. Osmosis d. None of the options ans: B 16. Differences in offspring and parents are called a. variables b. variants c. variation ans: C 17. The longest phase is a. G1 b. G2 c. S d. M ans: A 18. Solid wastes in plants is excreted by a. leaves b. barks c. leaves and barks ans: C 19. FAD means a. flavine adenosine dinucleotide b. flavine adenine dinucleotide c. flavol adenine dinucleotide d. flavotinamide adenine ans: B 20. Color of light used for photosynthesis in higher plants is a. red b. blue c. violet ans: A 21. In what stage of photosynthesis is ATP and NADPH converted to ADP,Pi and NADP a. cyclic phsotophorylation b. non cyclic photophosphorylation c. light dependent stage d. light independent stage ans: D 22. Decarboxylation doesn't occur in which of the following a. TCA b. EMP c. ETC d. none of the above ans: B 23. The pigment molecules for photosynthesis is located in a. Thyllakoid membrane b. Thylekoid sac c. Thyllakoid stroma d. Thylakoid membrane ans: D 24. Which of these is not a process in Calvin cycle? a. phosphorylation b. reduction c. carboxylation d. oxygenation ans: D 25. Which of these is not a process in light dependent stage of photosynthesis? a. phosphorylation b. charge separation c. electron transport ans: B 26. Most liquids are able to dissolve in water because a. warm solvent b. cold solvent c. universal solvent b. none of the above ans: C 27. Which of these is not an inherent property of water? a. freezing capacity b. universal solvent c. thermal capacity d. none of the above ans: A 28. Which enzyme catalyses change of glucose 6 phosphate to fructose 6 phosphate? a. glucose-6-phosphate isomerase b. phosphofructose isomerase c. phosphoenolase ans: A 29. Which of these is not a part of chromosome? a. kinetochore b. arms c. construction d. metaphase ans: D 30. Which of these is not a type of chromosome a. Acentric chromosome b. hollowcentric chromosome c. Telocentric chromosome d. Metacentric chromosome ans: B 31. A chromosome with an attached chromosome is called ans. satellite chromosome 32. A chromosome without centromere is ans. acentric 33. Which of the following scientists did not contribute to cell theory? a. Babagge b. Virchow c. Scheiden d. Schwann ans: A 34. Autophagy occurs in a. mitochondria b. lysosomes c. ribosome ans: B 35. Histone is associated with a. Eukaryotes b. Bacteria c. Viral cells d. eukaryotes ans: A 36. Which is incorrect? a. Genes are made up of carbohydrates b. Genes are made up of proteins c. Genes are unit of inheritance ans: A 37. All of these are advantages of Mendel’s choice of pea plant except a. Self pollination b. Cross pollination c. Ephemeral d. Hardy ans: D 38. Which is the correct sequence? a. water - p680 - p700 - NADP b. p680- p700 - water - NADP c. p700 - p680 - water - NADP d. water - p700 - p680 - NADP ans: D 39. Phloem loading is a. Transportation of sugar to sugar source b. Transportation of sugar to sugar sinks c. Transportation of sugar d. None of the options ans: D 40. Which of the following is a respiratory substrate? a. glucose b. pyruvic acid ans: A 41. Plants at times can excrete waste products into the soil through a. root b. root cells c. root hairs d. none of the above ans: C 42. The function of vacuole in plant cell is a. digestion of waste products b. turgidity c. water conduction ans: B 43. The deeply stained part of the chromosome is a. euchromatin b. heterochromatin c. kinetochore ans: B 44. At the end of glycolysis how many NAD would have been used a. 2 b. 5 c. 3 ans: A 45 Which of the following is not transported in plants and animals? a. Urea b. Hormones c. Oxygen d. Carbon dioxide ans: A 46. Organ of transportation include the following except a. Xylem b. Phloem c. Liver d. Heart ans: C 47. The lowest level of cellular organization is a. Acellular b. Eukaryotic cell c. Multicellular d. Unicellular ans: D 48. A cell organelle that contains hydrolytic enzymes ans: lysosomes 49. Germlime continuity was proposed by ans: Weissman 50. Tonoplast is found in ans: central vacuole 51. Which of the following is a function of plastids ans. photosynthesis and storage 52. Secondary thickening is formed from a. cell wall b. cell membrane PLB101 CBT CA QUESTIONS (2019/20) 1. How many FAD are used in aerobic respiration A. 0 B. 1 C. 2 D. 4 2. Which of the following has the longest period in Cell Cycle? A. G1 B. G2 C. M D. S 3. Which of the following is an obligate anaerobe? A. Clostridium botulinum B. E. Coli C. Staphylococcus aureus D. All of the above 4. What part of light is used by higher plant A. Red B. Blue C. Green D. none of the above 5. Which of the following is not an example of chromosome A. Hollowcentric B. Acrocentric C. Telocentric D. Metacentric 6. The deeply coloured part of the chromosome is called A. Centromere B. Kinetochore C. Euchromatin D. Heterochromatin 7. Lactic acid formation in plants take place in the absence of____ A. O2 B. ATP C. None of the above 8. In which stage of cell division does chromosomal abberation occur A. Prophase B. Anaphase C. Metaphase D. Telophase 9. The word protoplasm was described as a jelly-like something by A. Robert Hooke B. Rudolf von Virchow C. Purkinje 10. The meaning of FAD is A. Flavine Adenosine Dinucleotide B. Flavine Adenine Dinuclotide C. Fumerase Adenosine Dinucleotide 11. At what phase of meiosis does chromosomal aberration/non-disjunction occur A. Prophase B. Metaphase. C. Anaphase D. Telophase 12. How many NAD are produced during Krebs cycle A. 6 B. 3 C. 4 D. 8 13. Phleom loading occurs through with process A. Active transport B. Osmosis C. Diffusion 14. Which of the following is a significance of meiosis A. Basis of vegetative propagation B. Repair of damaged body parts C. Initiates variation and evolution of species 15. Innermost part of bark of plants is A. Phloem B. Xylem C. Vascular bundles D. Companion cells 16. Root hair absorb water through A. osmosis B. diffusion C. active transport 17. Phloem transports A. Upwards B. Downwards C. All directions 18. Which of the following is not among the xylem vessels A. Tracheids B. Parenchyma cells C. Sclereids D. Xylem elements 19. The earth is made up of what percent water? A. 60-70% B. 70-80% C. 80-90% D. 50-60% 20. Sugar sinks are _____ A. Sites of sugar production B. Sites of sugar storage C. Where sugar is not produced D. None 21. The human body is made up of how much water? A. 60% B. 70% C. 80% D. 90% 22. The intermediate product of glycolysis is A. Glucose B. Fructose C. Glucose-6-phosphate D. Fructose-6-phosphate 23. The number of ATP produced after the first stage of respiration is A. 4 B. 6 C. 3 D. 1 24. The following materials can be transported in plants and animals except A. Hormones B. Urea C. CO2 D. Oxygen 25. Alcohol is a product of A. Aerobic respiration B. Anaerobic respiration C. Krebs cycle D. Electron transport chain 26. Histones are found in A. bacterial cell B. viral cell C. eucaryotic cell 27. Phloem loading in sugar sources is by? A. Osmosis B. Active transport C. Diffusion D. Translocation 28. Which of the following is the waste product of respiration A. ATP B.CO2 C. H2O D. all of the above 29. How many NAD is required to convert pyruvate A.2 B.4 C.1 30. Which of the following is not correct? A. None of the following B. All of the following C. Plants do not have special excretory organs D. All living organisms have special excretory organs 31. How many carbon atoms are in 2 molecules of mannose? A.24 B.12 C.6 D.18 32. What is the enzyme that catalyze the reaction of glucose-6-phosphate to fructose-6-phosphate A. phosphoglucose isomerase B. Eldose C. Kinase D. Maltase 33. Water enter sieve elements by A. Diffusion B. Osmosis C. Active transport 34. What enzyme converts 2-phosphoglycerate to phosphor-enol-pyruvate? A. Kinase B. Isomerase C. Enolase 35. Which of the following will have a higher number of mitochondria A. Bacteria B. Mammals C. Fungi 36. At what percentage of oxygen does anaerobic respiration occur? A.10% B. 0.9% 37. Lack of green pigmentation in seedlings when raised in the dark is an example of A. Inheritable B. Heritable C. Environmental variation 38. An abnormal replication of genes is called A. Slicing B. Mutation C. Breakage 39. The stage where chromosomes are located at the center is A. Interphase B. Metaphase C. Anaphase D. Prophase 40. Which of the following did not take part in cell theory A. Virchow B. Schwann C. Schleiden D. Weissman 41. Solid wastes are removed from A. Barks B. Leaves C. Leaves and stems 42. Glycolysis is also known as... A. Embden Meyerhoff pathway B. Emeden Meyerhoff Pathway C. Emden Neyerfof Pathway D. Embden Meyerhof Pathway 43. Xylem is made of A. Dead cells B. Living cells 44. Which of the following is not part of phloem A. Tracheids B. Sclereids C. Albuminous cell D. Companion cell 45. When ADP is phosphorylated, it produces A. Adenosine Triphosphate B. Adanosine Triphosphate C. Adenosine diphosphate D. Adenine Triphosphate 46. Which is not a type of RNA A. mRNA B. nRNA C. tRNA D. rRNA 47. Translocation occurs in the A. Phloem B. Xylem 48. Excretion in plants can occur through how many ways A. 3 B. 5 C. 6 D. 2 49. Which one of these is not a source of sugar.... A. Flower B. Root C. Leaf D. none of the options 50. Water enter into the cells of sieve elements by A. Diffusion B. Osmosis C. Active transport 51. The following are biological variation that can be passed from parent to offspring except. A. Leaf B. Germline C. Root D. Skin. 52. Which of these is not part of a chromosome? A. Arm B. constriction C. Metaphase 53. Carboxylation does not occur in_____ A. ETC B. Krebs cycle C. EMP D. none of the above 54. Aerobic respiration occurs in the cytoplasm of______ A. Animals B. Plants C. Prokaryotes D. None of the above 55. The more the value of the pH is above 7 the greater its____ A. Alkalinity B. Acidity C. Neutrality D. Hydrogen ion concentration 56. The O2 released during photosynthesis is from A. H2O B. CO2 C. Chlorophyll D. C6H12O6 57. The longest phase of meiosis is? A. S B. M C. G1 D. G2 58. Which of the following statement is true of H2O? A. 70% of the cell is made of water B. The brain is made of 78% water C. Both of the above D. None of the above 59. Golgi apparatus comprise____&____ A. Golgi cisternae & vessicle B. Golgi body & vessicle C. Golgi body & cisternae D. Cristae & vessicle 60. The term protoplasm was first used by A. R. Hookes B. Purkinje C. Virchow D. Baere 61. A chromosome attached to another chromosome is called A. Satellite chromosome B. Metacentric C. Acrocentric D. Sub-metacentric 62. The absorption of water by the root hairs of plant from the soil is through A. Osmosis B. Diffusion C. All of the above D. Active transport 63. Plant Nutrient are absorbed from the soil by the A. Root B. Root cells C. Root hairs D. All are correct 64. All the following have a double membrane bound except A. Mitochondria B. Cytoplasm C. Nucleus D. Endoplasmic reticulum 65. The solvent property of water is due to the______ arrangement of its hydrogen and oxygen atom A. Spatial B. Asymmetrical C. Linear D. All of above 66. The cell theory was first postulated in A. 1665 B. 1838 C. 1839 D. 1855 67. Which of the following macromolecules is constantly found in the nucleus of a cell A. RNA B. DNA C. Histones & RNA D. Proteins 68. The isomer of Glyceraldehyde -3- phosphate is A. Dihydroxyacetone phosphate B. Dihydroxy- 3 - phosphate C. Dihydroxyacetate phosphate D. Glyceraldehyde-1-phosphate 69. Which of the following enzymes is responsible for phosphorylation during glycolysis A.Mutase B. Carbonase C. Kinase D. Aldolase 70. Which of the following is true A. Phloem tissue is made up of dead cells B. Xylem tissue is made up of dead cells C. Xylem tissue is made up of living cells D. None of the above 71. The process of water loss from plants is by A. Transpiration B. Adhesion C. Cohesion D. All 72. When sieve elements absorb water in phloem what happens A. tugor pressure builds up B. sieve element moves up 73. In TCA cycle, fumarate is decarboxylated to malic acid A. True B. False 74. A spherical organelle bounded by a single membrane.............something filamentous and colloidal....... A. Endoplasmic reticulum B. Nucleus C. Chloroplast D. Micro bodies 75. Which process in respiration doesn't involve decarboxylation? Ans: glycolysis ANSWERS 1. A 37. C 73. A 2. A 38. B 3. A 39. B 4. A 40. D 5. A 41. 6. D 42. D 7. C 43. A 8. B 44. A 9. C 45. A 10. B 46. B 11. C 47. A 12. A 48. D 13. A 49. B 14. C 50. B 15. 51. C 16. A 52. C 17. C 53. C 18. C 54. C 19. B 55. A 20. D 56. A 21. A 57. C 22. C 58. 23. A 59. C 24. B 60. B 25. A 61. A 26. C 62. A 27. B 63. C 28. D 64. B 29. A 65. B 30. B 66. C 31. B 67. B 32. A 68. A 33. B 69. D 34. C 70. B 35. B 71. A 36. A 72. A  19/ 20DEPARTMENTOFMLS PLB101 1.Whati sthef unct ionoft hepl ast id... A.f orphot osy nthesi sandst orage. B.Tr anspor tandmov ementofmat eri al C.Ext rect ioni npl ant D.For mat ionofpi gment s Ans: -A 2.Mov ementofmat eri alsi nanpl anti scal led.... A.Tr anspor tat ion B.Tr ansl ocat ion C.Tr ansf ormat ion Ans: -A 3.Phl oem l oadi ngi nvol ves A.di ff usi on B.osmosi s... C.Dr aini ng Ans: -A 4.Pl ant sconductwat erf rom t hei rroott hrough A.Di ff usi on B.Osmosi s C.Conduct ion C.Capi ll ari ty Ans: -B 5.Cel lul arr espi rat ionoccur sincel lsby A.Di ff usi on BOsmosi s C.Noneoft heopt ions Ans: -C 6.NAD+i sreducedt o A.NAD B.NADH2 C.( NADH) 2 Ans: -B 7.Aquesti onont ransmi ssi onofchar act erscodedi nwhi chf orm( not exact ly) -Genewasi ntheopt ions 9.FADHi soxi disedt o A.FAD+ B.Noneoft heopt ions C. Ans: -A 10.ThenoofATPpr oducedi nGl ycol ysi sis A.1 B.6 C.2 Ans: -C 11.Wat eri nindi vidualcel lisabout A.80% B.100% C.37% Ans: -A 12.Whenl iqui dwat erf reezes, themol ecul esar eloosel ypackedt o A.I ncr easedensi ty B.Reducev olume C.Reducedensi ty D.Noneoft heopt ions Ans: -C 13.Whi choft hef oll owi ngi snotani nher entpr oper tyofwat er A.Ther malcapaci ty B.Uni ver salsol vent C.Fr eez ingpr oper ty D.Noneoft heopt ions Ans: -D 14.Sol idwast esar eexcr etedoutoft hepl antt hrough A.Leav esonl y B.Leav esandbar k C.Bar k Ans: -B 15.Whi choft hef oll owi ngi snotdoubl emembr ane? A.Chl oropl ast B.Mi tochondr ia C.Gol gibody D.Nucl eus Ans: -C 16.Car boxy lat iondoesnotoccuri n_____ A.ETC B.Nonei scor rect C.Kr eb' scy cle D.EMP Ans: -D 17.Atwhatphaseofmi eosi sdoeschr omosomalabber ati on/non- di sjunct ionoccur A.pr ophase1 B.Met aphase1 C.Anaphase1 D.t elophase1 Ans: -C 18.Aer obi crespi rat ionoccur sint hecy topl asm of ______ A.Ani mal s B.Pl ant s C.Pr okar yot es D.None oft heabov e Ans: -C 19.Whi choft hef oll owi ngi sanobl igat eanaer obe A.Saccar omy ces B.Baci ll us C.E.Col li D.Al loft heabov e C 20.Themor ethev alueoft hepHi sabov e7t hegr eat eri ts____ A.Al kal ini ty B.Aci dit y C.Neut ral it y D.Hy drogeni onconcent rat ion Ans: -A 21.TheO2r eleaseddur ingphot osy nthesi sisf rom A.H2O B.CO2 C.Chl orophy ll D.C6H12O6 Ans: -A 22.Twomol esofmannosecont ainhowmanycar bonat om A.6 B.12 C.24 D.18 Ans: -B 23.Whi choft hef oll owi ngst atementi str ueofH2O A.The80%oft hecel lismadeofwat er B.Thebr aini smadeof78%wat er C.Bot hoft heabov e D.Noneoft heabov e Ans: -C 24.Gol giappar atuscompr ise____&____ A.Gol gici ster nae& v essi cle B.Gol gibody&v essi cle C.Gol gibody&ci ster nae D.Cr ist ae&v essi cle Ans: -C 25.I nTCAcy clef umar atei sdecar boxy lat edt omal icaci dA. tr ue B.Fal se A 26.Thet erm pr otopl asm wasf ir stusedby A.R.Hookes B.Pur kinj e C.Vi rchow D. Baer e Ans: -B 27.Achr omosomeat tachedt oanot herchr omosomei scal led A.Sat ell it echr omosome B.Met acent ri c C.Acr ocent ri c D.Sub-met acent ic Ans: -A 28.PHi susedt odet ermi net hedegr eeof A) Neut ral it y B) OH- C) H+andOH- D) I' vef orgot tent hel astopt ion Ans: -C 29.Thephl oem compr iset hef oll owi ngexcept A.Tr achei d B.Schl erei d C.Compani oncel l D.Sei vet ube Ans: -A 30.Theabsor pti onofwat erbyt her oothai rsofpl antf rom t hesoi lis thr ough A.Osmosi s B.Di ff usi on C.Al loft heabov e D.Act ivet ranspor t Ans: -A 31.Pl antNut ri entar eabsor bedf rom t hesoi lbyt he A.Root B..Rootcel ls C..Roothai rs D.Al lar ecor rect Ans: -C 32.Whi choft hef oll owi ngi sthesi gni fi canceofpH A.Bi ologi calr eact ionsar esensi ti vet onar rowpH B C 33Att heendofgl ycol ysi s_____FADi sused A.2 B.3 C.1 D.0 Ans: -D 34.Whi choft hef oll owi ngi ssugarsour ce A.Fl ower B.Leaf s C.None D.somer oot sofpl ant s Ans: -B 35.Thei nnerpar toft hebar kofapl anti s A.Phl oem B.Xy lem C. -A Ans: 36.Foodi str anspor tedt owhi chpar tofapl ant A.Leav esbr anches B.Newl eav esorbr anches C.Ol dleav esorbr anches Ans: -B 37.Whi chonei scor rect A.Xy lem cont ainsdeadcel ls B.Xy lem cont ainsl ivi ngcel ls C.Phl oem cont ainsdeadcel ls Ans: -A 38.Howmanyway sdoespl antexcr ete A.2 B.3 C.4 Ans: -A 39.Al lthef oll owi nghav eadoubl emembr aneboundexcept A.Mi tochondr ia B.cy topl asm C.Nucl eus D.Endopl asmi cret icul um Ans: -D 40.Thesolv entpr oper tyofwat eri sduet othe______ar rangementofi tshy drogenand oxygenat om A.Spat ial B.Asy mmet ri cal C.l inear D.Al lofabov e Ans: -B 41.Thecel ltheor ywasf ir stpost ulat edi n A.1665 B.1838 C.1839 D.1855 Ans: -C 42.Whi choft hef oll owi ngmacr omol ecul esi sconst ant lyf oundi nthenucl eusofacel l A.RNA B.DNA C.Hi stones&RNA D.Pr otei ns Ans: -B 43.Thei somerofGl ycer aldehy de-3-phosphat eis A.Di hydr oxy acet onephosphat e B.Di hydr oxy -3-phosphat e C.Di hydr oxy acet atephosphat e D.Gl ycer aldehy de-1-phosphat e Ans: -A 44.Whi choft hef oll owi ngi smaj orl yresponsi blef orphosphor ylat iondur inggl ycol ysi s A.Mut ase B.Car bonase C.Ki nase D.Al dol ase Ans: -C 45.Whi choft hef oll owi ngi str ue A.Phl oem t issuei smadeupofdeadcel ls B.Xy lem t issuei smadeupofdeadcel ls C.Xy lem t issuei smadeupofl ivi ngcel ls D.Noneoft heabov e Ans: -B 46.Thel awofi ndependentassor tmentofGenei sbasedon A.Genesont hesameal lel e B.Genesondi ff erentpai rsofhomol ogouschr omosome C.Genesont hesamechr omosome D.Genesofsamehomol ogouschr omosome Ans: -B 47.Ther e'sonet ooWhi choneshowst hecor rectequat ionf orabuf fersol uti onwhenaci dis added? -H++HCO3-H2CO3 48.Whi choft hef oll owi ngi snotasugarsour ce? A.Fl ower B.r ootaf terwi nter C.st em D.noneoft heabov e 49.Car boxy lat iondoesnotoccuri n_____ A.ETC B.Nonei scor rect c.Kr eb' scy cle d.EMP Ans: -D 50.Whi choft hesei snotpar tofachr omosome? A.Ar m Bconst ri cti on C.Met aphase D.Cent romer e Ans: -C 51.Thel ongphaseofmei osi s? ( A)S ( B)M ( C)G1 ( D)pr ophase Ans: -D 52.Thef oll owi ngar eef fi cienti nut il izi ngCo2except ? A.Hoy a B.Banana C.magnol ia D.Ur chi d 53.WhenFADi sreducedi tbecomes A. FAD B. FADH^ 2 C. FADH D.FADH2 Ans: -D 54.Thet ermf ort hemov ementofwat erv apourf rom t heaer ialpar tsofpl anti s_____ A.Ev apor ati on B.Tr anspi rat ion C.Tr ansl ocat ion D.Tr anspor tat ion Ans: -B 55.Asol uti ont hatmai ntai nsaconst antpHi spr obabl ya/ an A.Aci d B.Buf fer C.Al kal ine D.St andar d Ans: -B 56.Lact icaci dfer ment ati onoccur sint heabsenceof A.O2 B.Py ruv ate C.NADH2 D.noneoft heabov e Ans: -A 57.Absor pti onofwat erbyr oothai rsf rom t hesoi lisapr ocessof A.Tr anspi rat ion B.Act ivet ranspor t C.Osmosi s D.Di ff usi on Ans: -C 57.Mov ementofpr oduct sofphot osy nthesi siscar ri edoutby A.Xy lem B.Vascul arbundl es C.Phl oem D.St ems Ans: -C 58.Thet heor yofger mpl asm waspr oposedby A.Dar win B.Char les C.Wei ssman D.Lar mack Ans: -C 59.Thei nner mostl ayerofpl anti s A.Xy lem B.Phl oem C.St ems D.Root s Ans: -A 60.Sol idpr oduct sar eexcr etedt hrough A.Leav esandbar ks B.Leav esonl y C.Bar ksonl y D.Noneoft heopt ions Ans: -A 61.Al lthesear ecomponent soft hephl oem v essel sexcept A.Si eveel ement s B.Par enchy macel ls C.Scl erei ds D.Tr achei ds Ans: -D 62.Theenzy mewhi chconv ert sGl ucose6phosphat etoFr uct ose6 phosphat eis A.Phosphogl uco-6-i somer ase B.Phosphogl ycer ate C.Phosphof ruct oisomer ase D.Noneoft heopt ions Ans: -A 63.Whi chi snotat ypeofchr omosome? A.Met acent ri c B.Tel omet ri c C.Acr ocent ri c D.Hol lowcent ri c Ans: -D 64.Genet icv ari ati onoccur sinwhi choft hef oll owi ng A.Mi tosi s B.Mei osi s C.Cy topl asm D.Nucl eus Ans: -B 65.Hi stonesar eassoci atedwi th A.Eukar yot iccel l B.Pr okar yot iccel l C.Al gae D.Noneoft heopt ions Ans: -A 66.Mi tochondr iaar enumer ousi n A.Bact eri a B.Al gae C.Noneoft heopt ions D.Mammal s Ans: -D 67.G2i sthe..........phase A.Pr esy nthesi s B.Sy nthesi s C.Postsy nthesi s D.Noneoft heopt ions Ans: -C 68.Glyceraldehy de3phosphat eand..............ar ecat aly sedbyt ri ose phosphateisomerase A.Di hydr oxyacet onephosphat e B.Fr uct ose6phosphat e C.Di hydr oxy13phosphat e D.Noneoft heopt ions Ans: -A 69.I nanaer obi crespi rat ion, CO2i spr oducedi n A.Pl ant sonl y B.Pl ant sandani mal s C.Ani mal sonl y D.Noneoft heopt ions Ans: -A 70.Inthe3stagesofCel lul arr espi rat ion, howmanyFADhasbeenused up/produced A.1 B.2 C.4 D.8 C 71.Al lthesear epr ocessesoccur ingi ndar kreact ionexcept A.Oxy genat ion B.Car boxy lat ion C.Reduct ion D.Phosphor ylat ion Ans: -D 72.Lackofgr eenpi gment ati oni nseedl ingsi sanexampl eof A.Her it abl evar iat ions B.Nonher it abl evar iat ions C.Env ironment all yinducedv ari ati ons D.Noneoft heopt ions Ans: -C 73.Theconv ersi onofATPandNADPHt oADP, PiandNADoccur sin A.Cy cli cphosphor ylat ion B.Dar kreact ion C.Noncy cli cphosphor ylat ion D.Reduct ion Ans: -B 74.Sugarsi nki s A.Apl acewher esugari spr oduced B.Apl acewher esugari sst ored. C.Apl acewher esugari scar ri ed D.Noneoft hef oll owi ng Ans: -B 75.Cal cium andmagnesi um pect atei sfoundi nwhator ganel le. A.Pl ast ic B.Chl oropl ast s C.Vesi cles D.Mi ddl elamel la -D Ans: Team Cer ebr um pl b101pastquest ionsext ract ed 1.Thepr ocessofr ecombi nat ionofgenet icmat eri alsdur ingmei oti ccel ldi vi sioni scal l ed_ ___ ( A)Sy napse ( B)Chi asma ( C)Cr ossi ngov er ( D)Tr anscr ipt ion 2.Whi choft hef oll owi ngi soddoneout ? ( A) Fr uctose+glucose=sucrose ( B)Fruct ose+f ruct ose=mal tose ( C)Gl ucose+gal act ose =lactose (D)Gl ucose+glucose=mal tose 3.Ly sosomei sal soknownas_ __box ( A)Pr otect ive ( B)Sui cidal ( C)Adapt ive ( D)Noneoft heabov e 4.Whi choft hef oll owi ngi snotapr otei n? ( A)Ker ati n ( B)Haemogl obi n ( C)St ear in ( D)My ogl obi n 5.Thef inal productoft heCal vi ncy clei s__ ___ _ ( A)RUDP ( B)PGA ( C)ATP ( D)PGAL 6.Theli ghtr eact ionst ageofphot osy nthesi st