153A_final_S09_answers

153A_final_S09_answers - Chemistry 153A, Spring 2009 Final...

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Chemistry 153A, Spring 2009 Final Exam, ID A/B – Answer Key 1. a. True b. False; Reactions used in both catabolic and anabolic pathways are called ‘amphibolic c. False; NADH shuttle systems bring the electrons from NADH into the electron transport chain d. False; No water is involved in this reaction, so it isn’t a hydrolysis (phosphate breaks the bond). e. False; Fumarate is not prochiral. f. False; FADH 2 is part of (bound in) Complex II 3. a. B, G, I, K, L b. A, B, L c. A d. C, G, L e. A, B f. B, C, G g. D, E, L 4. b, c, d 5. Its actual ΔG is much closer to zero, because 1,3-bPG and ADP (the substrates) are at low concentration, and ATP (a product) is at high concentration. ([1,3-bPG] is low because of positive ΔG°' of previous reaction, catalyzed by glyceraldehyde-3-phosphate DH.) 6. Acetyl-CoA + 3NAD + + GDP + P i + FAD + 2H 2 O 2CO 2 + CoA + 3NADH + GTP + FADH 2 + 2H + 7. b f l d c j l d a i l d b 8. a. b.
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153A_final_S09_answers - Chemistry 153A, Spring 2009 Final...

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