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Unformatted text preview: Net ID BiOMG 3310 QUIZ 7 a 11/3/10 1. (11 pts) Given this rxn inside a cell at 300K: acetaldehyde + NADH + H + ethanol + NAD + The intracellular conc are: [acetaldehyde] = 0.02mM, [ethanol] = 0.02mM, [NADH] = 0.04mM, [NAD + ] = 0.40mM, pH = 7.0 The half rxns are: acetaldehyde + 2H + + 2e- → ethanol E o ' = -0.19V R = 0.0083kJ/mol ⋅ K and F = 96.5kJ/V ⋅ mol NAD + + H + + 2e- → NADH E o ' = -0.32V a. calculate ∆ E o ' b. calculate ∆ G o ' c. calculate ∆ G 2. (1 pt) Write the overall reaction of glycolysis. No need to show the chemical structures of reactants and products. 3. (14 pts) Rxns of glycolysis are shown below, numbered 1 - 10. Glycolytic intermediate molecules are lettered A - L. For (a & b), write the glycolytic intermediate letter(s); for (c - g) the rxn number(s) in the blank. Answers can be used more than once, and some blanks require more than one answer . DRAW IN THE MISSING INTERMEDIATE, I. molecule letters reaction numbers (a) chemical formula is C 6 (H 2 O) 6 _____ (c) oxidation and reduction occur at step(s) ______ (b) "high energy molecules": _______ (d) dehydration rxn(s) ______ (e) rxn(s) are far from equilibrium _______ (f) isomerization ______ (g) a product of this rxn is ATP _______ 4. (4 pts) Circle T(true) or F(false) next to the statements below that apply inside a living cell to metabolic rxns we have studied so far: a. T / F We get a relatively accurate description of the tendency of the rxn to occur by knowing the value of the...
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This note was uploaded on 01/01/2012 for the course BIOMG 3310 taught by Professor Feigenson during the Fall '11 term at Cornell.
- Fall '11