APFIVE ATP Hydrolysis and Reaction Coupling
The hydrolysis of ATP is an exergonic reaction that releases approximately $$7.3$$ kcal/mol of energy. All of the following statements about reaction coupling in cells are true EXCEPT:
A
If the free energy released by ATP hydrolysis exceeds the energy requirement of the endergonic reaction, the process can be energetically favorable.
B
The energy released by ATP hydrolysis can be used to drive endergonic reactions.
C
For coupled reactions, the sum of the free energy changes must be negative for the overall reaction to be spontaneous.
D
A cell can drive an endergonic reaction solely by coupling it with ATP hydrolysis even if the energy released is less than the energy required.
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