-1-BIOS 100, Cells and Organisms Name:Exam II, 16 October, 2008Michael Muller, InstructorThis exam consists of 53 very simple questions spread over the following seven pages. A codonchart is provided for your enjoyment on the last page. Stop right now and make sure that youhave bubbled in your last name first. You will lose four points from your exam total if you don’tdo this. Really, I’m that much of a jerk. Use the key below to answer questions 1 through 6.I. Glycolysis V. Alcohol FermentationII. Oxidation of Pyruvate VI. Lactic Acid FermentationIII. Krebs Cycle VII. Non-cyclic PhotophosphorylationIV. Oxidative Phosphorylation VIII. Cyclic PhotophosphorylationIX. Calvin-Benson Cycle1. This/these process produces the most sugars in plants:A. IV only B. VII only C. VIII only D. VII & VIII E. IX only22. This/these processes have a net production of CO :A. III only B. II, III C. II, III, IV D. II, III, V E. II, III, V, VI3. This/these processes have a net production of NADH:A. I only B. I, II C. I, II, III D. I, II, III, IV E. IV, V, VI24. This/these processes have a net production of O :A. VII only B. VIII only C. VII, VIII D. IV only E. IX only5. This/these processes have a production of NADPH:A. VII only B. VIII only C. VII, VIII D. IV only E. IX only6. How many of the above processes produce ATP?A. Three B. Four C. Five D. Six E. Seven7. Zippy has a growth chamber in his closet to grow his “tomatoes.” You noticed that Zippy hasgreen lights in his growth chamber. Is this a good idea?A. Yes, plants have green leaves so the green lights will help them growB. No, plant pigments do not absorb green light well and the “tomatoes” will dieC. Yes, the green lights will help him hide his “tomatoes” from his roommateD. No, green light breaks down the chlorophyll pigments in “tomato” leavesE. What are “tomatoes” ???8. Plant leaf mesophyll cells contain functional mitochondriaA. True B. False-2-9. Which of the following statements (A-D) about photorespiration is FALSE? If statements A-Dare true, then choose E.A. Photorespiration is bad for the plant (I will be very upset if you choose this one...)B. Photorespiration is more commonly seen in C3 plants than C4 plantsC. The phosphoglycolate produced by photorespiration has many uses in the plantD. Repairing the damage caused by photorespiration can cost the plant up to 40% of itstotal net photosynthetic gainE. All of the above statements are TRUE10. In the light-dependent reactions of photosynthesis, which molecule is responsible forpumping the H across the thylakoid membranes?+A. PSII (p680) B. Phaeophytin C. PlastoquinoneD. Cytochrome complex E. Plastocyanin11. Which of the following statements (A-D) about non-cyclic photophosphorylation is FALSE? If statemetns A-D are true, then choose E.A. Non-cyclic photophosphorylation produces both ATP and NADPHB. Oxygen gas is produced in non-cyclic photophosphorylationC. Energy from photons is utilized twice in non-cyclic photophosphorylationD. Photolysis occurs during non-cyclic photophosphorylationE. All of the above statements about non-cyclic photophosphorylation are TRUE212. Which of the enzymes below are involved with fixing carbon (CO )?A. Rubisco B. PEP Carboxylase C. PhosphofructokinaseD. A & B E. A & C13. Which of the following molecules can fit into the active site of Rubisco?22A. O B. CO C. ATP D. A & B E. A, B, & C14. What is the function of the antenna complex in the chloroplasts of leaves?A. Electron transfer B. H pumping C. Photon capture+D. Water splitting E. None of the above15. How many of the molecules below are consumed or used in the Calvin Cycle?2 CO ATP NADPH GlucoseA. One B. Two C. Three D. Four16. When to CAM plants typically open their stomates?A. During the dayB. During the nightC. When performing the light-dependent reactions D. When they receive the appropriate hormonal signalE. They are always open17. Global warming will have a deleterious effect on global agricultureA. True B. False-3-18. What is the allosteric inhibitor of phosphofructokinase?A. Glucose B. G3P C. ATPD. NADH E. Fructose 1,6 bisphosphate19. Which process produces the most ATP?A. Oxidation of pyruvate B. Krebs CycleC. Oxidative phosphorylation D. GlycolysisE. Lactic Acid Fermentation20. Why would a muscle cell sometimes perform lactic acid fermentation if it produces so muchless ATP and produces a poison (lactic acid)? A. Muscle cells can recycle the lactic acid and produce pyruvateB. Lactic acid fermentation regenerates NAD+C. Muscle cells must perform lactic acid fermentation to bulk up and improve efficiencyD. Lactic acid fermentation produces ATP which oxygen-starved muscles needE. Muscle cells are just weird and like to poison themselves21. Which of the following statements (A-D) about oxidative phosphorylation (electron-transportphosphorylation) is FALSE? If statemetns A-D are true, then choose E.2A. The source of electrons in this process comes from NADH and FADHB. ATP synthase is part of the electron transport chainC. An electron from NADH can pump more H into the intermembrane space than an+2electron from FADHD. The ultimate electron acceptor in the electron transport chain is oxygen gasE. All of the above statements about oxidative phosphorylation are TRUE22. What is the function of beta oxidation?A. To get energy from fatty acids and proteins B. To break down fats for entry into the small intestineC. To regenerate NADHD. To directly donate electrons to the electron transport chainE. None of the above23. Where does the Krebs cycle take place?A. The cytoplasm B. The stroma C. The intermembrane spaceD. The matrix E. None of the above24. Which of the following comparisons between aerobic respiration and photosynthesis isFALSE?A. Both processes synthesize ATP through the generation of H gradients+B. Photosynthesis breaks a water molecule to produce oxygen gas and ultimately give thatelectron to an electron carrier molecule (NADP) while respiration takes electrons2from electron carrier molecules (NADH and FADH ) and ultimately give them tooxygen gas to produce waterC. Both photosynthesis and aerobic respiration have a net production of ATPD. Both photosynthesis and aerobic respiration consume oxygen gasE. Both photosynthesis and aerobic respiration utilize electron transport chains-4-2255.. On a warm, sunny
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