33. In Calvin cycle of photosynthesis, CU reduced to produce organic compounds s

Question

33. In Calvin cycle of photosynthesis, CU reduced to produce organic compounds such as glucose. What cofactor is the electron donor for carbon fixation? (c) FADH: (a) NADPH (b) NADH 34. In the electron-transport chain in chloroplasts, the source of electrons comes from (c) NADPH (d) CO (b) glucose 35. Cellular respiration can take place in both animal cells and plant cells. True (b) False 36. What is the net number of activated carrier molecules NADH produced in citric acid cycle from one glucose molecule? (a) 6 NADH (c) 3 NADH (b) 4 NADH 37. Which of the following cells rely exclusively on O 2 NADH glycolysis to supply them with ATP? acrobic cells (c) animal cells (b) anaerobic cells 38. The high energy phosphoanhydride bond in (d) plant cells ATP is to break and energy. easy, releases (c) easy, requires (b) hard, requires (d) hard, releases 39. The enzyme in glycolysis that requires ATP is (a) an aldolase a kinase (b) an isomerase (d) a dehydrogenase 40. Fatty acids can be used in cellular respiration by first being converted into (a) oxaloacetate pyruvate (d) glucose (b) acetyl-CoA 41. How many CO2 molecules an acetyl-CoA can produce after going through the Krebs cycle? (a) 1 2 (c) 3 (d) 4 42·The one that can use the electron transport chain to build up a proton gradient which then drives the production of ATPs through ATPase is (a) fermentation (c) cellular respiration (b) Photosynthesis both b andc

Explanation / Answer

33) H2O is electron donar while NADP accepts electron. option D.

34) water molecule. option A.

35) True. both plant and animal cells perform cellular respiration.

36) the net gain of NADH in TCA cycle is 2 NADH. option D.

37) anaerobic cells do not have enzymes for TCA cycle. so option B.

38) easy to break and releases energy. option A.

39) A kinase. option B.

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