BIS2A Final vAKEY

BIS2A Final vAKEY - BIS2A Final Exam Winter, 2010 You have...

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BIS2A Final Exam Winter, 2010 You have exam version Akey For 4 points, bubble in your student registration number and exam version on your scantron This exam has 49 questions, each worth 4 points. You have 90’ Please remain seated during the last 10’ of the exam. Please hand in your exam with your scantron. The answer in bold face is the correct answer. Some questions had more than one correct answer- either answer gets full credit.
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1. Scientists make difficult witnesses at trials because: A. They don’t believe in “evidence”. B. They take too much on faith. C. They think they’re smarter than lawyers. D. They refuse to say that they are “absolutely certain” of something. E. They refuse to “swear in”. 2. The direction of a chemical reaction S -> P is determined by… A. The presence of a catalyst B. The Standard Free energy of S and P C. The relative concentrations of S and P D. a and b E. b and c 3. Consider the free energy diagram below, which describes the energy states of molecules undergoing the reaction X <-> Y. Raising the temperature of the reaction would reduce the size of which arrow? A. a B. b C. c D. d E. none of the arrows would decrease, they would only increase with increased temperature. 4. Respiration results in the formation of more ATPs are generated per glucose than does fermentation because… A. Glucose is oxidized completely in respiration B. Electrons can be stripped from NADH via the electron transport chain in respiration C. Pyruvate is oxidized during fermentation D. a and b E. b and c
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5. ATP is used as an “energy currency of the cell” because: A. The diphosphate bond is unusually stable, for a covalent bond B. Hydrolysis of the diphosphate bond has a high positive G C. Hydrolysis of the diphosphate bond has a high negative G D. ATP is a building block of DNA E. Both a and d 6. NADH can be used for biosynthetic reactions, or it can be “cashed in” for ATP. NAD+ is reduced to NADH in every one of these steps except… A. Glycolysis B. Pyruvate oxidation C. The citric acid cycle D. Respiratory electron transport. 7. Anaerobic respiration yields fewer ATPs per NADH than aerobic respiration because… A. Respiration can’t occur in the absence of O 2 . B. Fermentation is naturally inefficient C. O 2 is a very powerful oxidizing agent D. O 2 is a very powerful reducing agent E. O 2 has always been plentiful in the Earth’s atmosphere 8. The terminal electron acceptor in the noncyclic photosynthetic electron transport chain is… A. Oxygen B. Water C. NADP+ D. NADPH E. Oxidized chlorophyll 9. The terminal electron acceptor in the cyclic photosynthetic electron transport chain is… A. Oxygen B. Water C. NADP+ D. NADPH E. Oxidized chlorophyll 10. Photoautotrophs… A. can make ATP, but not NADPH, without eating other organisms B. can make NADPH, but not ATP , without eating other organisms C. can’t make either ATP or NADPH without eating other organisms D. can fix carbon, make ATP, and make NADPH without eating other organisms
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11. The graph here illustrates the results of an
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BIS2A Final vAKEY - BIS2A Final Exam Winter, 2010 You have...

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