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1. Organisms that obtain energy by metabolizing molecules produced by other organisms are: |
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2. Which of the following are products of light reaction of photosynthesis that are used in the Calvin Cyle? |
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3. During photosynthesis, visible light has enough energy to: |
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4. What is the main role of antenna pigment molecules in thylakoid membranes? |
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1. Split H2O and release O2 2. Harvest photons and transfer light energy to reaction center |
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5. Cyclic photophosphorylation to produce ATP is carried out by: |
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6. Chlorophyll and other pigments involved in photosynthesis are located |
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involves the same enzyme, ribulose-bisphosphate carboxylase (Rubisco) of calvin cycle |
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9. CAM plant fix CO2 from organic acids during: |
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Day time through Calvin cycle |
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10. Oxygen released during photosynthesis comes from the splitting of: |
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11. cells produce most ATP by: |
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12. a noncompetitive enzyme inhibitor: |
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binds to a site other than active site of enzyme |
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13. Under aerobic conditions, yeast does not produce: |
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14. Glyceraldehyde-3-phosphate (G3P) is produced in calvin cycle during |
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. Phase II (reduction phase) |
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15. Substances that tend to maintain pH |
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16. A photosystem contains: |
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Light harvesting antenna and reaction center |
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17. All life forms on earth derive energy from: |
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18. Photophosphorylation involves generation of: |
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19. which of the following processes is driven by electron transport chain from light driven reactions? |
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Creation of pH gradient by pumping protons across the thylakoid membranes |
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20. Net gain of ATP from glycolysis consists of: |
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21. Krebs cycle recycles: |
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22. Energized (excited) electrons from the photosystem are captured by: |
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Primary electron acceptor |
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Generation of ATP from ADP |
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24. In cellular respiration most ATP is generated by: |
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Oxidative phosphorylation |
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sum total of all biological reaction |
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reaction that release heat/energy |
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reactions in the biosynthesis of biochemicals |
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reaction that consumes energy/heat |
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reactions involved in break down of organic compounds |
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34. Fermentation in yeast results in: |
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35. Allosteric enzyme oscillates between inactive and active state because: |
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Of conformation change at a site other than the active site |
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36. Properties associated with an enzyme: |
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a. Has an active site b. Substrate specific c. Binds to substrate d. Lowers activation energy e. All of the above |
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37. Immediat energy source in the cell that drives reactions is: |
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38. Fatty acids are oxidized by |
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39. noncyclic electron flow in photosynthesis results in the synthesis of |
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40. Which of the following proteins is most abundant in the biosphere: |
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Ribulose bisphosphate carboxylase (Rubisco) |
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41. In oxidative phosphorylation electrons are ultimately accepted by: |
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42. CO2 in mesophyll cells of C4 plants condenses with: |
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Phosphoenol pyruvate (PEP) to make four carbon product |
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43. Calvin cycle recycles: |
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44. energy released from electron transport chain is used to pump H+ ions into which location: |
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mitochondrion intermembrane space |
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45. in chemiosmosis what is the direct source of energy that converts ADP + Pi into ATP? |
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energy from movement of proton through ATP synthesis |
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46. During aerobic respiration, electrons travel down hill in which sequence: |
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Glucose → NADH → electron transport → O2 |
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47. What is a nonprotein “helper” of enzyme molecule called? |
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48. Which of these statements about an enzyme is true? |
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Enzymes increase the rate of a reaction |
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49. Which term describes the cellular process of breakdown of large molecules into smaller ones? |
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50. Cellular process in which glucose is degraded into carbon dioxide and H2O is called: |
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1. An enzyme accelerates a metabolic reaction by |
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Lowering the activation energy. |
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2. You can increase the (faster) yield of a product in enzymatic reaction at substrate saturation by |
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3. An allosteric enzyme shuttles between active and inactive state because |
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inhibitor binds to an alternative site and changes conformation |
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4. Exergonic reaction occurs spontaneously because |
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5. Noncompetitive enzyme inhibitor |
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binds to the site other than the active site of the enzyme |
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7. Photosystem consists of |
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a. a light harvesting system b. reaction center chlorophyll c. primary electron acceptor ALL |
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8. In photosynthesis which sequence represents correct flow of electrons a. H2O ® photosystem I ® photosystem II b. NADPH ® electron transport chain ® O2 c. NADH ® O2 ® CO2 d. H2O to NADPH ® Calvin cycle |
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D. H2O-> NADPH -> Calvin cyle |
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9. Cyclic electron flow consists of |
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photosystem 1 that channels electrons from Fd to cytochrome complex |
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Oxidation of reaction center P 680 causes: |
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electron to be stripped from H2O |
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light reaction and Calvin cycle takes place at the same time |
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light reactions and Calvin cycle spatially separated |
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temporal separation of a light reactions and calvin cycle |
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get energy by: oxidation inorganic substances and light |
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gets organic material for their nutrition |
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16. Fermentation is a process by which |
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c. ethanol is produced by yeast |
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can produce ATP with or without oxygen |
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18. Metabolic pathway that is common to fermentation and cellular respiration |
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19. Final electron acceptor in oxidative phosphorylation involving electron transport chain is |
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20. Source of energy on all life on earth is |
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21. pH of solution will change when H ions are added |
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23. Photosynthetic pigment is located in |
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24. Chemiosmosis is important for |
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provides proton motive force |
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25. More ATP is generated by |
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oxidative phosphorylation |
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