BMB258 S05 T3 KEY

BMB258 S05 T3 KEY - NAME(Please print BMB 258 EXAMINATION...

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NAME: _____________________ (Please print) BMB – 258 - EXAMINATION II I KEY March April 2 9 8 , 2005 During this exam you should not be in possession of a beeper , calculators or a cellular phone. Please place your beeper , calculators or cellular phone in your book bag (after you turn it off!!) and place the bag against the wall of the room. You can only use calculators that do not have memory capabilities for alphabetic characters. Other calculators should also be placed in your bag. THESE ARE STANDARD SINGLE ANSWER MULTIPLE CHOICE QUESTIONS. THE POSSIBLE ANSWERS ARE LABELED A, B, C, D AND E. SELECT THE SINGLE BEST ANSWER FOR QUESTIONS 1-24 AND FILL IN THE CORRESPONDING CIRCLE ON THE SCANTRON SHEET. PRINT YOUR NAME ON THIS PAGE AND ON EACH OF THE SHORT ANSWER / FILL-IN PAGES. 1. Which of the five complexes in the electron transport chain is a molecul ar motor? A. I B. II C. III D. IV E. V 2. Which one of the following cannot take part in gluconeogenesis? A. a fatty acid with an odd number of carbon atoms B. glycerol C. oxaloacetate D. acetate E. fructo se 3. Which of the following fructose phosphates is only involved in fructose metabolism in liver and not in glucose metabolism? A. fructose 1,6-bisphosphate B. fructose 6-phosphate C. fructose 2,6-bisphosphate D. fructose 1-phosphate E. all are involved in glucose metabolism 1 of 19
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4. Starvation, or sometimes a low-carbohydrate diet, can bring about all but one of the following changes. Which one cannot be involved ? A. glycogenesis B. release of glucagon C. gluconeogenesis D. ketosis E. acidosis 5. Phosph or yl ase and the glycogen debranching system bring about the conversion of glycogen into which combination of products ? UDPgluco se Glucose 1-phosphate Glucose A. + + - B. + - + C. - + + D. + + + E. - - + 6. Glycogenin is: A. the primer for glycogen synthesis B. part of the glycogen molecule C. an autocatalytic protein D. A + C E. A + B + C 7. Which of the following is a first messenger? A. cyclic AMP B. AM P C. epinephrine D. calcium ions E. diacylglycerol 8. Which is correct combination of amino acids that, when in proteins, can undergo both phosphorylation and glyco s ylation? Serine Asparagine Threonine Tyrosine A. + - + - 2 of 19
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B. + + + - C. - + + + D. + - + + E. + + - + 9. The pentose phosphate pathway provide s an intermediate used in the synthesis of which product(s)? A. DNA B. ATP C. RNA D. B + C E. A + B + C 10. Two of the following four sugars can only be synthesized by the male or female, not both sexes. Which is the correct combination? Glucose Fructose Galactose Lactose A. + + - - B. + - - + C. - + + - D. - + - + E. + - + - 11. Which two pathways are activated after a meal containing starch? Glycolysis
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This document was uploaded on 11/04/2011 for the course BMB 258 at University of Miami.

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BMB258 S05 T3 KEY - NAME(Please print BMB 258 EXAMINATION...

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