In the ATP/ADP Cycle

Question

In the ATP/ADP cycle:
A) food provides the energy needed to link phosphate to ADP to make ATP.
B) food provides the energy needed to break down ATP into ADP.
C) converting ADP into ATP is an energy-yielding reaction, whereas converting ATP into ADP is an energy-requiring reaction.
D) after powering a reaction, ADP becomes ATP.

Accepted Answer

Food provides the energy required to attach a phosphate group to ADP, forming ATP. This process is fundamental in cellular energy transfer.