When ATP breaks down to supply energy for cellular reactions, it often transfers its 3rd phosphate to another molecule. This is called , and make the other molecule reactive.

phosphorylation ./ more

Explanation:

Phosphorylation  is known to be a biochemical process which can be described as the involvement of adding phosphate to an organic compound. That is the process of introducing phosphate into an organic molecule

For example, it involves the addition of phosphate Adenosine diphosphate, ADP to make or form Adenosine triphosphate, ATP.

Phosphorylation is known to be an important key reaction to sugar metabolism and storage and release of energy.

In this case, the decomposition or breaking down of ATP will allow it to transfer the 3rd phosphate to another molecule.