Fall 2006 Exam 3v2Key - BIOCHEMISTRY 460 EXAM 3 VERSION 2...

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BIOCHEMISTRY 460 DR. CANFIELD EXAM 3 VERSION 2 KEY NOVEMBER 15, 2006 INSTRUCTIONS: Please read carefully! 1. BUBBLE YOUR NAME, LAST NAME FIRST ON THE SCANTRON SHEET. 2. BUBBLE EXAM VERSION UNDER “K” 3. BUBBLE SECTION NUMBER UNDER “P” Multiple Choice (3 points each) ONLY ONE IS CORRECT 1. Most of the ATP made during cellular respiration is generated by: a. substrate-level phosphorylation. b. oxidative phosphorylation. c. the citric acid cycle d. glycolysis. 2. The reaction catalyzed by this enzyme requires a cofactor derived from thiamin: a. glyceraldehyde-3-phosphate dehydrogenase b. succinate dehydrogenase c. pyruvate carboxylase d. pyruvate dehydrogenase 3. The dissacharide maltose consists of a. a hemiacetal formed from the reaction of an aledehyde group on galactose with the alcohol function of glucose b. two glucose units joined by a β 1-4 glycosidic bond c. glucose and fructose joined in an α 1-6 glycosidic linkage d. two glucose units linked by an α 1.4 glycosidic bond. 4. The enzyme in gluconeogenesis unique to the pathway is: a. phosphoenolpyruvate carboxykinase b. glyceraldehyde 3-phosphate dehydrogenase c. pyruvate dehydrogenase d. phosphofructokinase 5. Which of the following enzymes catalyze the production of GTP in the citric acid cycle? a. α -ketoglutarate dehydrogenase. b. ATP synthase c. succinate dehydrogenase d. succinyl coA synthetase (succinyl thiokinase) 6. The substrate for glycogen synthase is a. glucose-1-P. b. glucose-6-P. c. UDP-glucose. d. free glucose.
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Exam 3 Bioc 460 November 15, 2006 Dr. Canfield 7. Which of the following has the highest phosphoryl group transfer potential? a. ATP b. GTP c. Glycerol 1-P d. Phosphoenolpyruvate 8. The enzymes that regulate glycolysis ("irreversible steps") are a. hexokinase, phosphofructokinase and pyruvate kinase. b.
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This note was uploaded on 04/07/2008 for the course BIOC 460 taught by Professor Ziegler during the Spring '07 term at University of Arizona- Tucson.

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Fall 2006 Exam 3v2Key - BIOCHEMISTRY 460 EXAM 3 VERSION 2...

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