practice quiz TCA_answers - A. NADH produced in the...

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1) For every molecule of glucose, how many molecules of CO 2 are released in the citric acid cycle? A. one B. two C. four D. six 2) Which of following is true about all of the dehydrogenase enzymes that participate in the citric acid cycle? A. They catalyze condensation reactions. B. They generate CO 2 . C. They convert a single bond to a double bond. D. They generate reduced electron carriers. 3) Which of the following conditions has a negative effect on the pyruvate dehydrogenase complex? A. a high ratio of [ADP]/[ATP] B. a high level of Ca 2+ C. a high ratio of [NAD + ]/[NADH] D. a high ratio of [acetyl-CoA]/[CoA] 4) In non-vertebrate organisms, the glyoxylate cycle is needed to convert A. triacylglycerols to fatty acids. B. acetate to carbohydrates. C. glyoxylate to ATP. D. oxaloacetate to malate. 5) In what way are the glyoxylate cycle and citric acid cycles linked?
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Unformatted text preview: A. NADH produced in the glycoxylate cycle enters the citric acid cycle. B. Acetyl-CoA produced in the glycoxylate cycle enters the citric acid cycle. C. Succinate produced in the glycoxylate cycle enters the citric acid cycle. D. Oxaloacetate produced in the glycoxylate cycle enters the citric acid cycle. 6) The citric acid cycle is an amphibolic pathway, which means that A. it serves in both anabolic and catabolic processes. B. it is linked to other cycles. C. it can catalyze reactions that are both exergonic and endergonic. D. it can move in both a forward and reverse direction 7) Biotin A. serves as a cofactor in dehydrogenation reactions. B. transfers one-carbon groups. C. is a cofactor that transfers acetyl groups. D. carries CO 2 groups....
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This note was uploaded on 02/02/2010 for the course BIOCHEM Biochem440 taught by Professor Dr.klevit during the Winter '09 term at University of Washington.

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practice quiz TCA_answers - A. NADH produced in the...

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