cells test 2 short answer

Cells test 2 short - Bio 1011 Cells Exam 2 Ver A Name 1(5 pts Given the following reaction Dihydroxyacetone-phosphate(DHAP

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Bio 1011 – Cells Exam 2 – October 13, 2006 Ver. A Name:_______________________________________ 1. (5 pts) Given the following reaction: Dihydroxyacetone-phosphate (DHAP)  Glyceraldehyde-3-phosphate (GA3P) At equilibrium at pH 7.0, [DHAP] = 10 mM and [GA3P] = 200 mM Use R = 1.987 cal/mole o where appropriate. Show formulas you are using for each calculation. a. What is the K' eq for this reaction? Keq = [GA3P]/[DHAP] = 200/10 = 20 b. What is the G o ' for this reaction? G o ' = - RTlnKeq = - (1.987cal/mole o ) (298 o ) ln 20 = - 1774 cal/mole c. If the steady state concentrations are as follows: [DHAP] = 25 mM and [GA3P] = 0.5 mM, calculate G' at 37 o C. G' = G o ' + RTln[GA3P]/[DHAP] = - 1774 cal/mole + (1.987)(310)ln .5/25 = - 1774 + ( - 2410) = - 4184 cal/mole d. Given the conditions in the previous question, will the reaction proceed as written under steady state conditions? Why or why not? Yes. Because G' is negative, and therefore exergonic 2. Complete the following reaction (2 pt): 1 glucose + __2___ NAD + + 2 ADP + 2 Pi __2___ pyruvate + ___2___ ATP + __2___ NADH + H + 3. Fill in the blanks (2 pt): For a fatty acid that has 16 hydrocarbons, ____7_________ rounds of β -oxidation will occur and generate ____8_______ acetyl Co-A molecules.
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This note was uploaded on 04/21/2008 for the course BIO 101 taught by Professor Mmcann during the Spring '08 term at Saint Joseph's University.

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Cells test 2 short - Bio 1011 Cells Exam 2 Ver A Name 1(5 pts Given the following reaction Dihydroxyacetone-phosphate(DHAP

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