07-_Exam_III_Form_1_Answers

07-_Exam_III_Form_1_Answers - Your Name: BMB461 Exam III...

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Your Name: This is Form 1 of the exam. Please mark on your scoring sheet. 1 BMB461 Exam III 11-16-2007 The exam begins at 9:10am and finishes at 10:00am sharp. The time needed to fill in the scoring sheet is included. Important, please note on the bottom of the page the form number for this particular exam and mark it in the form box on the scoring sheet. The first 30 questions are worth 3 points each; the last 5 are worth 2 points each. Each question has only a single correct answer. 1. Glycolysis is divided into preparatory phase and payoff phase. How many ATP molecules, if any, are consumed per glucose in the preparatory phase and how many NADH, if any, are produced per glucose in the payoff phase? A. 0 and 1 B. 1 and 0 C. 1 and 2 D. 0 and 2 E. 2 and 2 XXXXX F. 4 and 2 2. Aldolase directly produces during the preparatory phase of glycolysis per glucose: A. one pyruvate and one dihydroxyacetone phosphate B. two glyceraldehyde 3-phosphates C. one glyceraldehyde 3-phosphate and one dihydroxyacetone phosphate XXXXX D. two ATP E. two dihydroxyacetone phosphates F. one glyceraldehyde 3-phosphate and one 3-phosphoglycerate 3. Three of the following enzymes catalyze three consecutive reactions during the preparatory phase of glycolysis: 1. enolase, 2. aldolase, 3. phosphofructokinase 1, 4. phosphoglycerate mutase, 5. pyruvate kinase, 6. phosphohexose isomerase. List these three enzymes in order . A. 1,2,3 B. 4,1,5 C. 2,1,4 D. 4,3,5 E. 6,3,2 XXXXX F. 3,6,1 4 In the direction of glycolysis the substrates of glyceraldehyde 3-phosphate dehydrogenase are: A. 1,3 bisphosphoglycerate, NAD + , Pi B. glyceraldehyde 3-phosphate, NADH, Pi C. glyceraldehyde 3-phosphate, H 2 O, Pi, NAD + D. glyceraldehyde 3-phosphate, Pi, NAD + XXXXX E. 1,3 bisphosphoglycerate, NADH, Pi F. glyceraldehyde 3-phosphate, ATP, NAD + 5. The enzyme catalyzing the second reaction of the payoff phase of glycolysis is: A. phosphoglycerate mutase B. phosphoglycerate kinase XXXXX C. enolase D. pyruvate kinase E. triose phosphate isomerase
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Your Name: This is Form 1 of the exam. Please mark on your scoring sheet. 2 6. Glycolysis after 10 reactions starting with glucose produces: A. 2 pyruvate, 4 NADH, 4H + , 2ATP, 2 H 2 O B. 2 lactate, 2 NADH, 2H + C. 2 pyruvate, 4 ATP, 2 NADH, 2H + , 2 H 2 O D. 2 lactate, 2 ATP, 2NADH, 2H + , 2 H 2 O E. 2 pyruvate, 2 NADH, 2H + , 2ATP, 2 H 2 O XXXXX F. 2 pyruvate, 2ATP, 2 H 2 O 7. In the direction of glycolysis the shown glycolytic intermediate is a substrate for which enzyme : A. Aldolase B. Enolase C. Phosphoglycerate kinase D. Glyceraldehyde 3-phosphate dehydrogenase E. Pyruvate kinase XXXXX F. Phosphoglycerate mutase 8. The structure shown is a classic enzyme-bound intermediate of the following glycolytic enzyme: A. phosphoglucomutase B. pyruvate kinase C. phosphofructokinase D. enolase E . a l d o l a s e X X X X X F. triosephosphate isomerase 9. Which glycolytic enzyme intermittently produces the shown compound? A. hexose isomerase
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This note was uploaded on 05/01/2010 for the course BMB 461 taught by Professor Stoltzfus during the Spring '07 term at Michigan State University.

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07-_Exam_III_Form_1_Answers - Your Name: BMB461 Exam III...

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