EXAM 3 ver 3 - BIOCHEMISTRY 460 EXAM 3 VERSION 3 DR....

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BIOCHEMISTRY 460 DR. CANFIELD E X A M 3 NOVEMBER 16, 2005 VERSION 3 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: 4 pts each. Only one answer is correct. 1. Consider the coupled reactions A B Δ G º´ = + 7.4 kcal/mol B C Δ G º´ = - 11.3 kcal/mol For the reaction A Æ C a. Δ E 0 ´ will be negative. b. The reaction will proceed to the right spontaneously. c. The reaction is endergonic. d. K eq is < 1. 2. Which of the following compounds would be expected to produce the most energy on oxidation: a) b) c) d) 3. Futile cycles are avoided in glucose degradation and synthesis because a) The pathways for glycolysis and gluconeogenesis use no enzymes in common. b) Glycolysis and gluconeogenesis use enzymes in common but the pathways occur in completely different cellular compartments. c) Key steps of the pathways use different enzymes in the forward and reverse pathways. d) The substrate, glucose, is regulated by blood levels.
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Exam 3 Vers 3 Bioc 460 November 16, 2005 Dr. Canfield 4. The structure below a. contains an o-glycosidic bond at C-1. b. is an alpha anomer of a hexose. c. is a furanose. d. is a component of lactose. 5. Hexokinase a. catalyzes the first regulatory step of glycolysis. b.
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This note was uploaded on 02/13/2012 for the course BIOT 6300 taught by Professor Blinder during the Spring '11 term at Northeastern.

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EXAM 3 ver 3 - BIOCHEMISTRY 460 EXAM 3 VERSION 3 DR....

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