BIS103_05FinalKey_zbdl

BIS103_05FinalKey_zbdl - BIS103-001 (Spring 2005) Final...

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BIS103-001 (Spring 2005) Final Exam (June 14) Name_____________________________________ 1 Instructor: Abel Student ID # ANSWER KEY Pls., check appropriate box below. This exam consists of 6 questions. A maximum of 100 points can be earned. Partial credit will be given. There are a total of 12 pages, including the cover page and one blank sheet at the end for notes. However, do not use the blank sheet for your final answers. If you need more space, use the back of pages 2-8. Write your name on top of each page! Petitions for regarding will be considered only if you have used permanent ink , unless an addition error has occurred. *IT IS YOUR RESPONSIBILITY TO WRITE LEGIBLE! No extra effort will be made to decipher your handwriting. T = 25 o C (298 K) T = 37 o C (310 K) R = 8.315 J mol -1 K -1 F = 96.5 kJ mol -1 V -1 n = moles of electrons Z = charge of proton G = G o ’ + RTln[Prod.]/[React.] G = G o ’ + 2.303RT pH + ZF ∆Ψ G o’ = – nF E o’ E o’ = E o’ Oxidant – E o’ Reductant I,_______________________________________, authorize the University to distribute publicly this graded exam (e.g., handed out in class or left in a bin for pick up). I am aware of the fact that violations of the Academic Code of Conduct 1 may be reported to UC Davis Student Judicial Affairs. 1 Examples of academic misconduct include: receiving or providing unauthorized assistance on examinations, using unauthorized materials during an examination, altering an exam and submitting it for re-grading, or using false excuses to obtain extensions of time ( http://sja.ucdavis.edu/cac.htm ). Signature________________________________________ Date____________________________ Undergraduate Student Completing Incomplete Open Enrollment Student Graduate Student Question Value Score 1 22 2 16 3 19 4 19 5 10 6 14 (+ 2) TOTAL 100
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BIS103-001 (Spring 2005) Final Exam (June 14) Name_____________________________________ 2 1. (22 pts) Degradation of fatty acids by β -oxidation. a) Draw the structure of palmitoleic acid, which can be abbreviated as a “16:1 ( 9 )” fatty acid. (3 pts) b) What type of fatty acid is palmitoleic acid? (1 pts) Encircle only one! saturated monounsaturated polyunsaturated c) How many net ATPs are produced when palmitoleic acid is completely metabolized to CO 2 and H 2 O? For full credit you must show your work (assume that 1NADH = 3ATP and 1FADH 2 = 2ATP). (8 pts) 1. Activation of Palmitoleic Acid: Requirement of 2 ATP (–2ATP) 2. 7 Rounds of β -oxidation yield: 7 NADH 6 F A D H 2 (only 6FADH2 are produced because of the double bond at C-9) 8 A c e t y l - C o A 3. Oxidation of 8 Acetyl-CoA by TCA cycle yield: 24 NADH 8 F A D H 2 8 GTP (=ATP) 4. Oxidation of NADH and FADH 2 in ETC yield: 31 NADH Î 93 ATP 1 4 F A D H 2 Î 28 ATP ========== 121 ATP 5. Total ATP balance: 121 ATP + 8 ATP (from 8 GTP) 2 ATP (“fatty acid activation”) ================================================ Net total of 127 ATP OO H Palmitoleic Acid
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BIS103-001 (Spring 2005) Final Exam (June 14) Name_____________________________________ 3 d) Two groups of experimental rats were fed two different fatty acids as the sole source of carbon for about one month. The first group was fed with heptanoic acid (a “7:0 fatty acid”), and the second group received octanoic acid (an “8:0 fatty acid”). After the experiment, rats of both groups were examined and a striking difference was noticed.
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This note was uploaded on 08/15/2008 for the course BIS 103 taught by Professor Abel during the Spring '08 term at UC Davis.

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BIS103_05FinalKey_zbdl - BIS103-001 (Spring 2005) Final...

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