| December 7, 2015

In the phosphoglycerate kinase reaction the conversion of 1,3-biphosphoglycerate to 3-phosphoglycerate is coupled to ATP synthesis. The physiological free energy change is near zero (equilibrium). Which if the following is CORRECT about ATP formation in this step:
Select one:
a. ATP formation can only happen when the reaction goes in the reverse direction
b. ATP formation can only happen under standard conditions
c. ATP formation can only happen if the coupled reaction follows after a highly exregonic step in the pathway
d. ATP formation is already calculated in the free energy change of the mechanism and is not an impediment for the reaction to move forward

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Category: Biology

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