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homework%202 - BIBC 102 Fall 2008 Homework 2 Name _...

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BIBC 102 Name __ Fall 2008 Homework 2 Discussion section_________ 1) In glycolysis, glucose-6-phosphate is converted to fructose-6-phosphate. If the reactants and products have the following concentrations at equilibrium , calculate the standard free energy change ( G’°) for the reaction at 25°C. glucose-6-phosphate fructose-6-phosphate (9.6x10 -2 M) (4.8x10 -2 M) Would you expect this reaction to be reversible under cellular substrate and product concentrations? Is it? 2) From the textbook, chapter 13, answer question 5 on page 523 (Question 5 on page 518 of Lehninger 4 th edition). (Hint: Take the reverse of the first equation given [hydrolysis of phosphate from glucose] to come up an endergonic reaction plus an exergonic reaction that can be coupled to give the second equation given [phosphorylation of glucose by hexokinase].) 3) From the textbook, chapter 13, answer question 6, parts a, b, and c, on page 523 (Question 6 on page 519 of Lehninger 4 th edition).
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homework%202 - BIBC 102 Fall 2008 Homework 2 Name _...

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