Biology Past Paper PDF

You should answer all questions before opening the answer file!!! 1. Modern Cell Theory tells us that: (mark all correct answers) A. All life’s energy flow (metabolism & biochemistry) occurs within cells. B. The cell is the basic structural and functional unit of life forms. C. All c...

You should answer all questions before opening the answer file!!! 1. Modern Cell Theory tells us that: (mark all correct answers) A. All life’s energy flow (metabolism & biochemistry) occurs within cells. B. The cell is the basic structural and functional unit of life forms. C. All cells come from pre-existing cells. D. Cells are only found in animals. E. Free cell formation, similar crystals 2. Modern Cell Theory tells us that: (mark all correct answers) A. All life’s energy flow (metabolism & biochemistry) occurs within cells. B. The cell is the basic structural and functional unit of life forms. C. All cells come from pre-existing cells. D. Cells are only found in animals. E. Free cell formation, similar crystals 3. The kingdoms including organisms that are composed of Eukaryotic cells: A. Plantae, Animalia, archaea B. Plantae, Animalia, fungi, Protista C. Animalia, archaea, monera, Plantae D. Plantae, Animalia, fungi, protists, archaea 4. How many kingdoms contain organisms that have a cell wall? What are they? Four Kingdoms: Plantae, Monera (includes Eubacteria and Archaebacteria), Protista, and Fungi. 5. The domain of Prokaryotic included: A. Eubacteria and protista B. Fungi and archaebacteria C. Protista and archaebacteria D. Eubacteria and archaebacteria 6. The domain of Eukarya included: A. Plantae, Animalia, Archaea B. Plantae, Animalia, Fungi, Protista C. Animalia, Archaea, Monera, Plantae D. Plantae, Animalia, Fungi, Protista, Achaea 7. We can divide the cells into: A. Multicellular and unicellular B. Prokaryotic and Eukaryotic C. Single-cell and multiple cells D. Autotroph and heterotroph 8. Which of the following is true about fungi? A. Eukaryotes C. Obligatory parasitic B. Prokaryotes D. Cannot be grown on cell-free media Hope that you guys find joy in Biology! 9. Which diagram shows a plant cell? B 10. Which diagram shows one organ only? C 11. What is it? A. Mitochondria B. Golgi body C. Ribosome D. Smooth ER 12. The site steroid hormones synthesized from cholesterol? A. Golgi apparatus B. Lysosome C. Ribosome D. Smooth ER E. Mitochondria 13. Which belongs to prokaryotic cells but not eukaryotic cells? A. Nucleoid B. Nuclear envelope C. Nucleo lamina D. Nucleus Hope that you guys find joy in Biology! 14. What are the common features of prokaryotes and eukaryotes? A. Have DNA, small and simple, lack of nucleus, lack of organelles, single cellular, and linear chromosome B. Have DNA, large and complex, contain nucleus, contain organelles single/ multicellular, linear chromosomes C. Have DNA, small and simple, have nucleus but lack of organelles single/ multicellular, linear chromosome D. Have DNA, ribosomes, cytoplasm, plasma membrane 15. The site steroid hormones synthesized from cholesterol? A. Golgi apparatus B. Lysosome C. Ribosome D. Smooth ER E. Mitochondria 16. A …….. is basically a specialized vesicle that holds a variety of enzymes. The enzyme proteins are first created in the rough endoplasmic reticulum A. Golgi body B. Nucleolus C. Peroxisome D. Lysosome 17. The site that generates most of the chemical energy? A. Golgi apparatus B. Lysosome C. Ribosome D. Smooth ER E Mitochondria 18. All the living material inside a cell, except the nucleus, makes up the: A. cytoplasm B. membranes C. vacuole D. cell wall 19. The head of a phospholipid is... A. Made of carbohydrates B. Made of proteins C. Hydrophobic D. None of the above 20. The site with the high level of hydrolytic enzyme activity? A. Golgi apparatus B. Lysosome C. Ribosome D. Smooth ER E. Mitochondria Hope that you guys find joy in Biology! 21. Where is the site of protein synthesis in cells? A. Golgi apparatus B. Lysosome C. Ribosome D. Smooth ER E. Mitochondria 22. Which of the following is a double membrane-bound organelle? A. Chloroplast B. Peroxisome C. Ribosome D. Lysosome 23. Which of the following correctly matches an organelle with its function? A. mitochondria - photosynthesis B. nucleus cellular respiration C. ribosome - synthesis of lipids D. vacuole- storage 24. A structure, consisting of 2 parts and having a diameter of 20 nm, is found attached to membranes in cells. What is the structure? A. Golgi apparatus B. Lysosome C. Mitochondria D. Ribosome 25. What is it? A. ER B. Golgi body C. Ribosome D. Smooth ER Hope that you guys find joy in Biology! 26. In the diagram below, what structure is labeled with the letter A? A. Carbohydrate B. Cholesterol C. Protein D. Lipid 27. The tail of a phospholipid is... A. Made of carbohydrates B. Made of proteins C. Made of nucleic acids D. Hydrophobic E. None of the above 28. What is the function of the carbohydrates in the cell membrane? A. Pumps and channels B. Communication C. Strength D. Break down organelles 29. What are the three types of passive transport? A. Simple diffusion, facilitated diffusion, and pumps B. Exocytosis, endocytosis, pumps C. Exocytosis, endocytosis, osmosis D. Simple diffusion, facilitated diffusion, and osmosis 30. The nephron reabsorbs glucose through a sodium/ glucose transporter. What sort of transporter is it? A. Protein channel B. Antiporter C. Sodium pump D. Symporter 31. Which of these statements best describes the function of the cell membrane? A. It allows substances to enter and exit the cell freely. B. It controls which substances enter and exit the cell. C. It prevents substances from entering the cell. D. It prevents substances from leaving the cell. Hope that you guys find joy in Biology! 32. Which organelle has the maximum oxidative enzyme activity? A. Peroxisome B. Mitochondria C. Lysosome D. Ribosome 33. The following cell components are involved in the synthesis and secretion of an enzyme: A. Mitochondria B. Vacuole C. Nucleoid D. ER 34. The organelle which can deliver vesicles, or packets of various cell products A. Golgi apparatus B. Lysosome C. Ribosome D. Smooth ER E. Mitochondria 35. Which substance acts as a medium for biochemical reactions in a cell? A. Amino acid B. Glucose C. Glycerol D. Water 36. The covalent bond is formed between atoms of...? A. Metals B. Non-metals C. Metals and non-metals D. All elements 37. The site of detoxification of drugs and harmful chemicals? A. Golgi apparatus B. Lysosome C. Ribosome D. Smooth ER E. Mitochondria 38. Which series of terms is listed in order of increasing level of organization? A. Cell → organ → tissue → organ system B. Cell → tissue → organ → organ system C. Tissue → cell → organ → organ system D. Tissue → organ → organ system → cell 39. A hypotonic solution is one whose concentration: A. is equal to that inside a cell B. is greater than that inside a cell C. is less than that inside a cell D. None of the above Hope that you guys find joy in Biology! 40. A membrane is permeable to hydrogen but impermeable to sodium ions. Which molecule cannot move into the cell? A. Hydrogen B. Sodium ions C. Both hydrogen and sodium ions D. Neither 41. Which description of the heart is correct? A. The heart is an organ, containing several systems, which form part of the circulatory tissue. B. The heart is an organ, containing several tissues, which form part of the circulatory system. C. The heart is a system, containing several organs, which form part of the circulatory tissue. D. The heart is a system, containing several tissues, which form part of the circulatory organ. 42. What forms the channels and pumps in the phospholipid bilayer? A. Carbohydrates B. Hydrophilic heads C. Proteins D. Lipids 43. What is the function of proteins in cell membranes? A. Cellular transport B. Photosynthesis C. Cellular respiration D. None of the above 44. The reaction to form disaccharides from monosaccharides is called: A. Hydrolysis B. Glycolysis C. Dehydration D.Condensation 45. Name of the bond between 2 amino acids? A. Peptide B. Condensation C. Ester D. Glycosidic 46. Which is the basic unit of nucleic acid? A. Fatty acid B. Amino acid C. Nucleotide D. Nucleic acid Hope that you guys find joy in Biology! 47. The nephron reabsorbs glucose through a sodium/ glucose transporter. What sort of transporter is it? A. Protein channel B. Antiporter C. Sodium pump D. Symporter 48. In a covalent bond, electrons are shared In ionic bonds, electrons are gain or loss 49. Which bond is the strongest and most stable? A. Ionic bond B. Van Der Waal C. Hydrogen bond D. Covalent bond 50. Where is the site of protein synthesis in cells? Ribosomes The site with the high level of hydrolytic enzyme activity? Lysosome The site with generates most of the chemical energy? Mitochondria The site steroid hormones synthesized from cholesterol? Smooth ER Hope that you guys find joy in Biology!