Adenosine triphosphate (ATP)

Definition

Adenosine triphosphate (ATP) is a molecule that stores and transfers energy within cells, making it crucial for nearly all cellular processes. ATP releases energy when its phosphate bonds are broken, which cells use to perform work such as muscle contraction and nerve impulse propagation.

Related terms

Metabolism: The chemical processes occurring within a living organism in order to maintain life, involving the production and breakdown of ATP.

Cellular respiration: A process in cells where organic molecules are broken down to release energy, used to convert ADP into ATP.

Enzyme: A protein that acts as a catalyst in biochemical reactions, including those that synthesize and break down ATP molecules