Catabolism within cells liberates energy, which is then captured and used to phosphorylate ADP to form ________.

Catabolism

The metabolic process that breaks down molecules into smaller units to release energy.

Phosphorylate

The process of introducing a phosphate group into an organic molecule, often to activate or deactivate proteins and enzymes in cells.

ADP

Short for Adenosine Diphosphate, it is a nucleotide involved in energy transfer within cells.