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Unformatted text preview: I, (Name) _________________________________________ have neither received nor given help BMB 401/506-Fall 2006 Examination II October 10, 2006 KEY During this exam you should not be in possession of any electronic equipment (beeper, cellular phone, earphone, etc.), books and papers, other than the test. Please place all these materials in your book bag (after you turn them off!!) and place the bag against the wall of the room. THESE ARE STANDARD ANSWER MULTIPLE CHOICE QUESTIONS. THE POSSIBLE ANSWERS ARE LABELED A, B, C, D AND E. SELECT THE SINGLE BEST ANSWER AND MARK THE APPROPRIATE CIRCLE ON THE SCANTRON ANSWER SHEET. Bubble in your name and ID# (C# please) and seat number. There are 33 questions. You will receive full credit for 31 correct answers. 1. The glyoxylate cycle enables plants and certain microorganisms to survive using only: A. Pyruvate B. Acetate C. Oxaloacetate D. Oxalosuccinate E. None of the above 2. What is substrate level phosphorylation during glycolysis? A. Phosphorylation of AMP by ATP B. ATP synthesis when the phosphate donor is a substrate with high phosphoryl transfer potential C. Phosphorylation of glycolytic intermediates D. Phosphorylation of ATP coupled to an ion gradient E. ATP and AMP synthesis from 2 moles of ADP 3. What molecule must be excluded from the active site of hexokinase during synthesis of glucose-6-phosphate? A. ATP B. ADP C. Water D. Glucose 4. One of the requirements for glycolysis to continue under anaerobic conditions is the regeneration of NAD + . This is because NAD + A. is needed for the conversion of pyruvate to lactate B. is essential for the conversion of glucose-6-phosphate to fructose-6-phosphate C. is necessary for the reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase D. None of the above 5. Which ONE of the following co-factors is NOT involved in the reaction catalyzed by pyruvate dehydrogenase complex? A. Riboflavin B. Niacin C. Pantothenic acid D. Biotin E. Thiamine 6. One of the phosphorylated sugars given below is a feed- forward activator of pyruvate kinase. Which one?...
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- Fall '09