ATP and ADP both play a role in cellular reactions involving energy. How are these two molecules related? A Adding a phosphate group to ADP produces ATP and releases energy.

B. ATP breaks down to produce ADP and a phosphate group, releasing energy

C. ADP breaks down to produce ATP and a phosphate group, releasing energy

D. Adding a phosphate group to ATP produces ADP and releases

D

Explanation:

A

Explanation:

You can see it in the picture:

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