JR. BIPC 25-26 Bio Exam (17-8-24) VINEX PDF

VINEX TEAM IIT - JEE & NEET ACADEMY JR. BIPC - 25 26 BIO - ANATOMY, FROG, CELL - UNIT OF LIFE, BIOMOLECULES & CELL CYCLE & CELL DIVISION DU...

VINEX TEAM IIT - JEE & NEET ACADEMY JR. BIPC - 25 26 BIO - ANATOMY, FROG, CELL - UNIT OF LIFE, BIOMOLECULES & CELL CYCLE & CELL DIVISION DURATIONl 1Hr 30Min DT: 17-8-24 MAX. MARKS: 360 1. Which of the following is true about stomata? b. Thin-walled mitochondria i. Present on epidermis of leaves c. Thin-walled chloroplast d. All of these ii. Regulate the process of transpiration and gas- 9. Subsidiary cells are the specialised cell in the eous exchange a. Vicinity of guard cells iii. Surrounded by guard cells b. Covering the tomata iv. It is an opening c. Covering the stomata cells v. It is sometimes secretory d. Vicinity of trichomes vi. It is bean shaped in monocots 10. Endodermis of dicot stem has a. i, ii, iii, iv b. i, ii, iv, v a. Water cavity b. Starch sheath c. i, ii, iii, iv, v d. All of these c. Casparian strip d. Pith 2. Which of the following cell posses chloroplast? 11. Carefully observe the given diagram and select a. Mesophyll cells of leaf b. Guard cells the correct option c. Sclerenchyma d. a and b 3. Vascular bundles having xylem and phloem which lie at the same radius is termed as fig.,24 a. Concentric b. Radial c. Conjoint d. Amphicribral 4. Choose the correct pair a. It is Monocot root b. It is Dicot stem a. Root epidermis - Root hair c. It is Monocot stem d. It is Dicot root b. Endodermis - Barrel shaped 12. Carefully observe the given diagram and select the correct option c. Innermost corrtical - Endodermis layer of dicot root d. All of these 5. Exarch and 2-4 vascular bundles occur in a. Sunflower stem b. Sunflower root fig.,30 c. Maize stem d. Maize root 6. The basic difference between stem and root is a. It is Section of Monocot leaf that xylem in stem is b. It is Section of Dicot root a. Mesarch b Exarch c. It is Section of Monocot stem c. Endarch d. Polyarch d. It is Section of Dicot stem 7. Vascular bundle is enclosed within a well de- 13. Statement - A: The collenchyma performs veloped sclerenchymatous sheath in various functions like photosynthesis, storage a. Monocot stem b. Dicot stem secretion c. Monocot root d. Dicot root Statement - B: The collenchyma occurs in lay- 8. Mesophyll cells in leaves are made up of ers below the epidermis in most of the dicoty- ledonous plants a. Thick-walled chloroplast # 48 - 8- 1, Somayaji Building, Behind Boy London, Vizag - 16, Ph. No. 0891-2791076, Cell: 98494 98582 1 www.myvinex.com http://www.facebook.com/vinexcoaching  VINEX TEAM IIT - JEE & NEET ACADEMY a. A is correct only b. B is correct only 21. A triangular structure that joins the right atrium, c. Both are correct d. Both are wrong in frog is called 14. Statement - A: Both apcal meristems and in- a. Conus arteriosus and receives blood from vena tercalary meristems are primary meristems cava Statement - B: Lateral meristem produce b. Sinus venosus and receives blood from vena woody axis cava a. A is correct only b. B is correct only c. Sinus venosus and receives blood from pul- monary artery c. Both are correct d. Both are wrong d. Conus arteriosus and receives from pulmo- 15. Assertion (A): Cambium is a lateral meristem nary vein and cause growth in width 22. The lymph of frog lacks Reason (R): In monocot stem, cambium is present a. Plasma proteins only a. Both A and R are true and R is correct expla- b. RBCs and few proteins nation of A c. RBCs and WBCs b. Both A and R are true and but R is not correct d. RBCs and WBCs and proteins explanation of A 23. Cloaca in male frog has the openings of c. A is true but R is false a. Rectum and urinogenital duct d. Both A and R are false b. Urinary bladder and rectum 16. Croaking of frog is c. Urinogenital duct, urinary bladder and rectum a. Hunger call b. Danger call d. Urinogenital duct and urinary bladder c. Mating call for female d. Musical note 24. Hindbrain of a frog consist of 17. The forelimb of male frog is distinct from female a. Cerebellum only frog by the presence of b. Cerebellum and medulla oblongata a. Copulatory pad on the first digit of the fore- limb c. Medulla oblongata only b. A neck and tail is present d. Cerebrum and medulla oblongata c. Nictating membrane 25. Match the columns I and II. T - 11 d. Copulatory pad on the first digit of the Column – I Column – II hindlimb A. Forebrain P. A pair of optic lobes 18. In frog, stomach secrete B. Midbra in Q. A pair of a. HCl and rennin b. Pepsin and pepsinogen olfactory lobes C. H ind-bra in R. Cerebellum c. HCl and gastric juices d. HCl and pepsinogen 19. In frog, if a hole is punched in the floor of its a. A - R, B - P, C - Q b. A - Q, B - R, C - P buccal cavity, then frog will not die, reason is c. A - P, B - R, C - Q d. A - Q, B - P, C - R a. Cutaneous respiration occurs 26. Select the correct answer about the frog b. Respiration other than lungs will continue I. A mature female can lay 250 to 300 ova at a c. Buccal respiration does not stop time. d. It can store oxygen for future also II. Fertilisation is internal 20. Amphibian heart is a. Only I is correct b. Only II is correct a. 3 - chambered b. 2 - chambered c. Both are correct d. None are correct c. 1 - chambered d. 4 - chambered 27. Statement - A: The RBCs, WBCs and plate- # 48 - 8- 1, Somayaji Building, Behind Boy London, Vizag - 16, Ph. No. 0891-2791076, Cell: 98494 98582 2 www.myvinex.com http://www.facebook.com/vinexcoaching  VINEX TEAM IIT - JEE & NEET ACADEMY lets are enucleated in frogs 35. What is true for a prokaryotic cell? Statement - B: Frogs, are omnivores and noc- i. Prikaryotic cell is usually 0.1 - 2.0 mm turnal ii. They are smaller in size a. A is correct. b. B is correct. iii. Gratly vary in shape and size c. A & B are correct d. A & B are incorrect iv. Multiply much rapidly than eukaryoties 28. Statement - A: Frog does not have hepatic por- a. i, ii only b. i, ii, iii only tal system. Statement - B: Frog is not a poikilotherm c. i, iii, iv only d. All of these a. A is correct. b. B is correct. 36. The smallest living cells with cell wall are a. Virus b. Lichen c. Mycoplasma d. Bacteira c. A & B are correct d. A & B are incorrect 29. Assertion - A: Hepatic portal system is present 37. Plasmids of bacteriald cell possess all the follow- in frog. ing characteritics except Reason - R: Renal portal system is present in a. They confer unique phenotypic characters to frog some bacteria b. These are used in genetic engineering a. Both A and R are true and R is correct expla- nation of A. c. These help in the normal metabolism of the cell b. Both A and R are true and but R is not the correct explanation of A. d. These are extra chromosomal DNA c. A is true but R is false. 38. Bacterial cell envelope consists of d. Both A and R are false. a. A tightly bound 2 layered structure 30. Identify the botanist who examined a large num- b. A loosely bound 3 layered structure ber of plants? c. A tightly bound 3 layered structure a. Mathias Schleiden b. Mathias Schwann d. A loosely bound 2 layered structure c. Rudolf Virchow d. Mathias Schwann 39. What is external to plasma membrane and in- 31. Cells divide and new cells are formed from pre- ternal to glycocalyx layer? existing cells, the concept was given by.... a. Capsule b. Cell wall a. Matthias Schleiden b. Theodor Schwann c. Cellular matrix d. Cytoplasm c. Rudolf Virchow d. Rudolf Schwann 40. What is true about mesosomes? 32. What does a nucleus of a typical animal cell a. Help in cell wall formation contain b. Help in DNA replication and its distribution to a. Chromosomes b. DNA c. Genes d. All daughter cells 33. How many of the following are membrane c. Both a and b d. None of these bound organelles? 41. Identify the longest portion in a bacterial flagel- Nucleus, Chloroplast, Lysosomes, Ribosomes, lum is? Mitochondria, Vacuoles a. Fimbriae b. Hook a. 2 b. 5 c. 4 d. 0 c. Basal body d. Filament 34. Identify the longest animal cell in the given diagram? 42. In prokaryotes, the ribosomes are associated with which structure of the cell? a. Plasma membrane b. Glycocalyx fig.,4 c. Mesosome d. Cell wall a. 3 b. 1 c. 2 d. All 43. Gas vacuoles are found in # 48 - 8- 1, Somayaji Building, Behind Boy London, Vizag - 16, Ph. No. 0891-2791076, Cell: 98494 98582 3 www.myvinex.com http://www.facebook.com/vinexcoaching  VINEX TEAM IIT - JEE & NEET ACADEMY a. Blue green photosynthetic bacteria a. They consist of many flat, disc - shaped sacs b. Purple photosynthetic bacteria or cisternae, stacked anti parallel to each other c. Green photosynthetic bacteria d. All of these b. They consist of many flat, disc-shaped sacs or cisternae, stacked parallel to each other 44. Which of the following statements are true about Eukaryotes? c. They consist of many raised square-shaped sacs or cisternae, stacked parallel to each other i. All of them have chemically complexed cell wall d. Noe of these ii. They have extensive compartmentaisation 52. Golgi apparatus - identify the incorrect statement iii. Endoplasmic reticulum is present in eukaryotes a. Cis and the trans faces are entirely different a. ii and iii b. i, iii c. i, ii d. All b. Packaging materials 45. Lipid bilayer is c. Material secreted outside the cell always a. Hydrophilic b. Hydrophobic d. All are correct c. Hydrophilic and Hydrophobic 53. Which of the following are not hydrolytic enzyme? d. Depends on the surrounding medium a. Nucleases b. Proteases 46. In human beings, the membrane of the erythro- c. Carbohydrases d. Ligases cyte contains approximately 54. Which one of the following is called as ‘power a. 52% proteins & 40% carbohydrates houses’ of cell? b. 52% proteins & 40% lipids a. Mitochondria b. Chloroplast c. 52% lipids & 40% proteins c. Golgi apparatus d. Lysosomes d. 50% proteins & 50% lipids 55. Energy releasing reactions - ETS in a cell occurs in 47. Select the correct answer a. Chloroplast b. Ribosomes i. In cell membrane integral proteins are par- c. Mitochondria d. Plastics tially or totally buried in the membrane 56. Select the correct matching: ii. Peripheral proteins are completely embedded in (Type of leucoplst) (Stored food) lipid layer a. Amyloplast - Oil and fat a. i is correct b. ii is correct b. Elaioplast - Protein c. Both are correct d. None are correct c. Aleuroplasts - Carbohydrate 48. Movement of ions or molecules against electro- d. None of these chemical gradient is called _______ 57. The stroma of chloroplast contain enzymes re- a. Diffusion b. Passive gradient quired for synthesis of c. Active transport d. Osmosis a. Carbohydrates b. Proteins 49. Middle lamella mainly contains c. Fats d. Both a and b a. Magnesium pectate b. Calcium pectate 58. Ash signifies c. Potassium pectate d. Sodium pectate a. Compounds oxidised to gaseous form (CO2 50. RER is frequently seen in cells associated with and water vapour) after burning of the tissue a. Frequent synthesis of protein only b. The material left after burning the tissue, which b. Frequent secretion of protein only contains inorganic elements such as calcium, magnesium, etc. c. Frequent synthesis and secretion of protein c. Compounds removed in the form of gases d. Frequent synthesis and secretion of lipids d. Compounds which may be soluble in intrac- 51. Choose the correct statement about Golgi body ellular fluid # 48 - 8- 1, Somayaji Building, Behind Boy London, Vizag - 16, Ph. No. 0891-2791076, Cell: 98494 98582 4 www.myvinex.com http://www.facebook.com/vinexcoaching  VINEX TEAM IIT - JEE & NEET ACADEMY 59. An extra carboxylic group is present in 69. What is/are the functions of proteins? a. Glutamic acid b. Tryptophan a. Transport nutrients across cell membrane c. Tyrosine d. Phenylalanine b. Fights infectious organisms 60. Identify the Zwitterionic form in the following c. Acts as respiratory substrates diagram? d. More than one options are correct R R 70. Which of the following is homopolysaccharide? | | H3N  CH  COOH H 3 N  CH  COO- a. Cellulsose b. Inulin (A) (B) c. Glucose d. Both a & b R 71. All the following are composed exclusively of | H 2N  CH  COO - glucose except : (C) a. Lactose b. Starch c. Maltose d. Cellulose a. A b. B c. C d. D 72. Select the correct pair of substituted purines. 61. Which of the following is/are derived lipids? a. Cytosine and thymine a. Carotenoids b. Terpenes b. Adenine and guanine c. Both a and b d. None of these c. Uracil and cytosine d. Guanine and uracil 62. Which of the following is an example of sterol in 73. What is the configuration of proteins in the pri- animal tissue? mary structure? a. Cholesterol b. Campesterol c. Stigmasterol a. Helix b. Line c. Sheet d. Globule d. More than one options are correct 74. Which of the following statements is correct? 63. Sugar combines with nitrogen bases to form a. Biocatalysts accelerate the rate of a given a. Nucleoside b. Nucleotide metabolic reaction c. Both are correct d. None of them b. Enzymes are always protein 64. Which of the following category does not be- c. Enzyme catalyst are same like inorganic cata- long to secondary metabolite lyst d. All of these a. Amino acids b. Flavonoids 75. Enzymes enhance rate of reaction by c. Gums d. Terpenoids a. Increasing the activation energy 65. Which one of the following is a secondary me- b. Forming reactant - product complex tabolite? c. Establishing stable bonds with substrate a. Sugar b. Amino acids d. Lowering activation energy c. Flavonoids d. None of the above 76. The cell cycle is divided into two basic phases. 66. The compounds found in acid insoluble frac- They are? tion have molecular weights in the range of? a. G1, S and G2 - phases a. Ten thousand Dalton b. Karyokinesis and cytokinesis b. Less than 8000 dalton c. Interphase and cytokinesis c. 18 - 8000 dalton d. 18 - 800 dalton d. Interphase and M-phase/divisional phase 67. Which of the following is not polymeric substance? 77. An onion root tip has 16 chromosomes in each a. Lipids b. Glucose c. Proteins d. Both a and c cell. How many chromosomes the cell would have at S - phase? 68. Which of the following protein functions as in- tercellular ground substance? a. 28 b. 16 c. 62 d. 7 a. Trypsin b. Collagen c. Insulin d. GLUT - 4 78. Which of the following types of cell cycle is known as equational division? # 48 - 8- 1, Somayaji Building, Behind Boy London, Vizag - 16, Ph. No. 0891-2791076, Cell: 98494 98582 5 www.myvinex.com http://www.facebook.com/vinexcoaching  VINEX TEAM IIT - JEE & NEET ACADEMY a. Amitosis b. Meiosis c. Mitosis d. b and c 87. During telophase II 79. Metaphase chromosome is made up of two sister a. The nuclear membrane and nucleous reappear chromatids, which are held together by the ______ b. Is followed by cytokinesis a. Centromere b. Centrosome c. a and b d. None of the above c. Centriole d. Kinetochore 88. Match the column I and II and choose the cor- 80. Higher plants differ from animals in having rect option. T - 11 a. Disappearance of nuclear membrane during Column – I Column – II prophase b. Anastral mitosis A. M – phase P. First stage of c. Centromere and Kinetochore Karyokinesis of mitosis d. Disappearance of nucleous during prophase B. Mitosis Q. Most dramatic period of the cell cycle 81. Furrow formation does not occur in plant cell C. Prophase R. Conservation of specific during cytokinesis because of chromosome number of each species a. Extensible cell wall D. Meiosis S. Equational division b. Inextensible cell membrane c. Extensible cell membrane a. A - R, B - P, C - Q, D - S d. Inextensible cell wall b. A - S, B - P, C - Q, D - R 82. Significance of mitosis lies in c. A - Q, B - P, C - R, D - S a. Producing cells genetically similar to parent cell d. A - Q, B - S, C - P, D - R b. Producing cells genetically dissimilar to parent cell 89. Statement - A: In cell division growth (in terms of cytoplasmic increase) occurs in a continu- c. Increasing cellular mass ous process. d. Producing cells genetically some what simi- Statement - B: In Cell division DNA lar to parent cell synthesis occurs only during one specific 83. Meiosis will always occurs in stage in the cell cycle. a. Diploid cells b. Haploid cells a. A is correct b. B is correct. c. Both haploid and diploid cells d. Any cell c. Both A & B are correct 84. Meiosis is extremely necessary for d. Both A &B are incorrect. a. Growth of the cell b. Fertilization 90. Assertion - A: Mitotic division is an equational c. Gametogenesis d. Both a and b division 85. Which of the following represents the correct Reason - R: Second meiotic division is homotypic. order in Prophase I? a. Both A and R are true and R is correct expla- a. Zygotene, diplotene, pachytene, leptotene, nation of A. diakinesis b. Both A and R are true and but R is not the b. Leptotene, zygotene, pachytene, diplotene, correct explanation of A. diakinesis c. A is true but R is false c. Leptotene, diplotene, pachytene, zygotene d. Both A and R are false. diakinesis d. Pachytene, leptotene, zygotene, diplotene, diakinesis 86. The enzyme involved in the process of crossing over a. DNA crossinase b. DNA ligase c. Recombinase d. DNA polymerase # 48 - 8- 1, Somayaji Building, Behind Boy London, Vizag - 16, Ph. No. 0891-2791076, Cell: 98494 98582 6 www.myvinex.com http://www.facebook.com/vinexcoaching