Bio93finalC+A - Bio 93 Section: C1 Final Exam Questions...

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Bio 93 Section: C1 Final Exam Questions Lectures 1-15 (1 question per lecture) 1. Which test are you taking ? (This question is used to set the correct scantron answer key) a. Test C1 b. Test C2 2. Which of these components are found associated with the plasma membrane ? (1 point) a. Glycoproteins b. Glycolipids c. Serpentine (7 transmembrane) receptors d. Na+/K+ ion pump e. All of the above 3. Cholesterol carried by low density lipoproteins (LDL) enters the cell by which process ? (1 point) a. Receptor mediated endocytosis b. Phagocytosis c. Passive transport d. Co-transporter e. Pinocytosis 4. Which of these organelles has a double membrane ? (1 point) a. Peroxisome b. Chloroplast c. Smooth ER d. Rough ER e. Lysosome 5. Which of these is not part of the endomembrane system ? (1 point) a. Nuclear membrane b. Smooth ER c. Rough ER d. Golgi e. Mitochondria 6. Which of the following are components of signal transduction pathways ? (1 point) a. Ion channels b. Cyclic adenine monophosphate (cAMP) c. Estrogen d. Transcription factors e. All of the above 7. Which of the following is the major pH buffer of human blood ? (1 point) a. HCl and Cl- ions b. NaCl and KCl c. Carbonic acid (H 2 CO 3 ) and bicarbonate ions (HCO 3 - ) d. Hemoglobin
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e. ATP and ADP 8. Which functional groups are not present in a molecule of ATP ? (1 point) a. Phosphate, hydroxyl b. Amino, carbonyl c. Phosphate, sulphydryl d. Carboxylic, sulphydryl e. Amino, hydroxyl 9. Which level(s) of hemoglobin protein structure are perturbed in sickle cell anemia ? (1 point) a. Primary b. Primary and secondary c. Quaternary d. Tertiary and quaternary e. All levels 10. One of the following statements about enzyme catalysed reactions is incorrect ? (1 point) a. Enzymes alter the overall change in free energy of the reaction. b. Enzymes are proteins c. Enzymes lower the activation energy of exergonic reactions d. Enzymes are consumed during the reactions e. ATP hydrolysis provides the energy for many endergonic cellular reactions 11. The redox equation for sugar respiration is: C 6 H 12 O 6 + 6O 2 --> 6CO 2 + 6H 2 0 + energy Which statement is true ? (1 point) a. Sugar is reduced b. Oxygen is oxidised c. Electrons and protons are transferred from sugar to oxygen d. A and B e. B and C 12. What are the products from the light reactions of photosynthesis ? (1 point) a. NADH, ADP, CO 2 b. NADPH, ATP, O 2 c. NADP+, ADP, sugar d. NADPH, H 2 O, CO 2 e. NADH, FADH 2 , NADP+ 13. During which phase of mitosis do the chromosomes separate ? (1 point) a. Prophase b. Cytokinesis c. Anaphase d. Metaphase e. Telophase Lecture 16 Meiosis and sexual life cycle. Role of meiosis, genetic variation 14. Which of these statements about the sexual life cycle is not correct ? (1 point) a. Meiosis of germ cells produces haploid gametes
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b. Fertilization of an egg by a sperm produces a zygote c. The zygote divides by mitosis to generate all diploid somatic cells d. DNA replication occurs only before mitosis e.
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Bio93finalC+A - Bio 93 Section: C1 Final Exam Questions...

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