Multiple Choice
In the context of Gibbs free energy, how does ATP become ADP during a typical cellular energy-yielding reaction?
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1. Introduction to Biochemistry
Gibbs Free Energy
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In the context of Gibbs free energy, when is the energy stored in ATP released for cellular work?
A
When ATP is hydrolyzed to ADP and inorganic phosphate (Pi), increasing the amount of products and lowering Gibbs free energy.
B
When ATP binds noncovalently to an enzyme without being hydrolyzed, because binding alone always releases the same amount of free energy as hydrolysis.
C
Only when ATP is converted to cyclic AMP (cAMP), because ATP hydrolysis to ADP is not energetically favorable under cellular conditions.
D
When ATP is synthesized from ADP and Pi, because bond formation directly releases free energy.
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