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Which of the following BEST explains the ATP/ADP cycle?

A. ATP becomes ADP when two phosphates are added; ADP becomes ATP when two phosphates are removed.
B. ATP becomes ADP when a phosphate is removed; ADP becomes ATP when a phosphate is added
C.ATP becomes ADP when a phosphate is added; ADP becomes ATP when a phosphate is removed.
D. ATP becomes ADP when two phosphates are added; ADP becomes ATP when a phosphate is removed.

User VHristov
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Final answer:

The ATP/ADP cycle involves the conversion of ATP into ADP when a phosphate is added, and the conversion of ADP back into ATP when a phosphate is removed. These processes release and require energy respectively.

Step-by-step explanation:

The correct answer is C. ATP becomes ADP when a phosphate is added; ADP becomes ATP when a phosphate is removed. ATP (adenosine triphosphate) is a molecule that stores and provides energy for cellular processes. It can be converted into ADP (adenosine diphosphate) when a phosphate group is removed, releasing energy. ADP can then be converted back into ATP when a phosphate group is added, requiring energy.

User Kalpak
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