test3(1)

test3(1) - BCH 4054 October 30, 2000 1. (12) HOUR TEST 3...

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BCH 4054 October 30, 2000 HOUR TEST 3 NAME_____________________ 1. Many biosynthetic reactions involve the input of energy from ATP and the reducing agent NADPH. For the lipid (fatty acid and sterol) biosynthesis reactions we have studied, identify (by giving reactants and products—structure or name) the steps in which: (12) (a) ATP is utilized in sterol biosynthesis (3 steps). Page Points 1 ____ 2 ____ 3 ____ 4 ____ Total ______ (8) (b) NADPH is utilized in fatty acid biosynthesis (2 steps) (6) 2. Citrate plays two distinct roles in fatty acid biosynthesis. Describe them.
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BCH 4054 --Hour Test 3 Page 2 Name________________________ (10) 3. HMG-CoA is an intermediate in both ketone body formation and in sterol synthesis. Identify the next step in its metabolism in each pathway by giving: (a) The structure of the reactants and products of the step (abbreviation of nucleotides is okay). (b) The name of the enzyme catalyzing the step. (c)
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test3(1) - BCH 4054 October 30, 2000 1. (12) HOUR TEST 3...

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