The breakdown product of leucine is acetyl coa this

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40. The breakdown product of leucine is acetyl-CoA. This amino acid would be classified as A) ketogenic C) Both glucogenic and ketogenic B) glucogenic 41. The process of converting NO 3 - to N 2 is called 42. How does the glutamate dehydrogenase reaction contribute to amino acid biosynthesis and also function as an anaplerotic reaction for the TCA cycle? 43. Which of the ketone bodies can be decarboxylated non-enzymatically? 44. What would be the cost in ATP-equivalents to produce one triacylglycerol molecule? A) 2 B) 3 C) 4 D) 6 E) 7 45. Complete oxidation of _____ chain fatty acids utilizes enzymes of the TCA cycle. 46. Which intermediate is involved in both fatty acid and cholesterol synthesis? 47. Which of the following participates in GMP synthesis from IMP? Scrambled version A Page 5
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48. Which of the following does NOT participate in the regulation of fatty acid synthesis? A) Feedback inhibition by palmitoyl-CoA D) acetyl-CoA carboxylase B) Activation by citrate E) All of the above regulate fatty acid synthesis C) Activation by malonyl-CoA 49. How many photons will be involved in the transfer of 4 electrons from PSII to 2 NADP + ? 50. Insulin binding initiates a cascade that eventuates in the activation of ______ . 51. Which of the following statements concerning glutamine synthetase is FALSE? Section III: 18 points, total (3 points each) 52. Fasting results in an increase in which of the liver enzymes? A) hexokinase F) B and C B) phosphoenolpyruvate carboxykinase G) A and D C) pyruvate dehydrogenase H) B and D D) glucose-6-phosphatase I) B, C, and D E) A and B J) All of the above
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