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Exam3_11_KEY - 1 Biochemistry I(CH 339K Fall 2011...

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1 Biochemistry I (CH 339K) Fall 2011 Unique #51580 Professor Adrian Keatinge-Clay Exam #3 Oct. 24, 2011 Do not begin work on this exam until you are instructed to begin. The core values of The University of Texas at Austin are learning, discovery, freedom, leadership, individual opportunity, and responsibility. Each member of the University is expected to uphold these values through integrity, honesty, trust, fairness, and respect toward peers and community. The work that you hand in will be considered to be your own original work prepared without assistance. I will uphold the honor code on this exam. Signed Name: KEY Printed Name: _________________________ EID: _______________
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2 Equations and Constants: Δ G’º = -n F Δ E’º Δ G = Δ G’º + RTlnQ Δ G t = RTln(C final /C initial ) + Z F ψ Q = [C] c [D] d /[A] a [B] b for aA + bB cC + dD R = 8.315 Jmol -1 K -1 F =0.0965 kJmV -1 mol -1 0 ºC = 273 K Show all work. 1. For each class of lipids, write the letter corresponding to the molecule that belongs to that class. (14 points) +2 each G Glycerophospholipid E Wax A Sterol F Triacylglycerol B Eicosanoid D Pigment C Vitamin A B C D E F G
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3 2. In an erythrocyte plasma membrane, phosphatidylserine is 70 times more concentrated in the inner leaflet than the outer leaflet. a) Draw [16:0/18:1( Δ 9 )]-phosphatidylserine. (Hints: the serine side chain oxygen is covalently bound to the phosphoryl group, look at the last question) (12 points) O O O O O P O O O NH 3
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