For the Hydrolysis of ATP to ADP + ℗I, the Free-Energy

question 13

Multiple Choice

For the hydrolysis of ATP to ADP + ℗i, the free-energy change is -7.3 kcal/mol under standard conditions (1 M concentration of both reactants and products) . In the cellular environment, however, the free-energy change is about -13 kcal/mol. What can we conclude about the free-energy change for the formation of ATP from ADP and ℗i under cellular conditions?

• A) It is +7.3 kcal/mol.
• B) It is less than +7.3 kcal/mol.
• C) It is about +13 kcal/mol.
• D) It is greater than +13 kcal/mol.
• E) The information given is insufficient to deduce the free-energy change.

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