Quizz5_Spr06 - Biochemistry 3020 Instructor: Dr. H.-J....

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Biochemistry 3020 Quiz 5 2006-Feb-16 Instructor: Dr. H.-J. Wieden 12:15 – 12:30 Name:_____________________ ID#:__________________ Page:1/3 1. The anaerobic conversion of 1 mol of glucose to 2 mol of lactate by fermentation is accompanied by a net gain of: A) 1 mol of ATP. B) 1 mol of NADH. C) 2 mol of ATP. D) 2 mol of NADH. E) none of the above. 2. During strenuous exercise, the NADH formed in the glyceraldehyde 3- phosphate dehydrogenase reaction in skeletal muscle must be reoxidized to NAD + if glycolysis is to continue. The most important reaction involved in the reoxidation of NADH is: A) dihydroxyacetone phosphate glycerol 3-phosphate B) glucose 6-phosphate fructose 6-phosphate C) isocitrate α -ketoglutarate D) oxaloacetate malate E) pyruvate lactate 3. If glucose labeled with 14 C in C-1 were fed to yeast carrying out the ethanol fermentation, where would the 14 C label be in the products? A) In C-1 of ethanol and CO 2 B) In C-1 of ethanol only C) In C-2 (methyl group) of ethanol only D) In C-2 of ethanol and CO 2 E) In CO 2 only 4.
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Quizz5_Spr06 - Biochemistry 3020 Instructor: Dr. H.-J....

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