BMB_401-506_F06_Exam_3 KEY

BMB_401-506_F06_Exam_3 KEY - I, (Name) _ have neither...

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I, (Name) _________________________________________ have neither received nor given help BMB 401/506-Fall 2006 Examination III November 7, 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 42 questions. You will receive full credit for 40 correct answers. 1. Carnitine has an active role: A. In transporting fatty acids across the plasma membrane into the cytosol B. In activation of fatty acids in the cytosol C. As an allosteric regulator of acylCoA dehydrogenase D. In transport of fatty acids across the mitochondrial membrane E. As a carrier of acetate during conversion of acetyl CoA to ketone bodies 2. Which ONE of the following statements about ketogenesis is false? A. Ketone bodies appear in urine during fasting and starvation B. Ketone bodies are produced during times when liver is glucogenic C. Ketogenesis is a mechanism for regeneration of CoA in the mitochondrion D. Ketone bodies are a major source of energy in the liver during fasting and starvation 3. Which ONE of the following statements is correct? A. Fatty acid synthesis is a series of oxidation reactions B. Fatty acid biosynthesis requires NAD + as a cofactor C. Fatty acid biosynthesis requires NADPH as a reducing agent D. Fatty acid biosynthesis requires NADH as a reducing agent E. Fatty acid biosynthesis is a mitochondrial function 4. The role of citrate in fatty acid biosynthesis is: A. To activate fatty acid synthase B. To activate malic enzyme decarboxylating C. To activate ATP-citrate lyase D. To activate acetyl-CoA synthetase E. To activate acetyl CoA carboxylase 5. Which ONE of the following intermediates in the oxidation of odd-chain fatty acids is likely to appear in the urine in vitamin B 12 deficiency? A. Formic acid B. Tetranoic acid C. Pentanoic acid D. Hexanoic acid E. Methylmalonic acid 6. Which ONE of the following fatty acids would yield the highest level of gluconeogenic precursors? A.
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This note was uploaded on 02/10/2012 for the course BMB 401 taught by Professor Staff during the Fall '09 term at University of Miami.

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BMB_401-506_F06_Exam_3 KEY - I, (Name) _ have neither...

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