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Catabolism: What Is Catabolism? | Fitness, Health & Exercise Glossary

February 11, 2009 on 7:30 pm | By Matt | In Fitness, Health & Exercise Glossary | No Comments

What Is Catabolism? Learn What Catabolism Is And The Role It Plays In The Body.

Definition of Catabolism

Catabolism is a series of chemical reactions (via metabolic pathways in the body) that break down complex molecules into smaller units and release energy. This released energy is then stored within the molecule adenosine triphosphate (ATP).

Cells use ATP to:

•  Synthesize cell components
•  Power muscle contraction and motion
•  Transport substances across cell membranes.

Catabolism is the opposite of anabolism, which is the process of creating larger, more complex molecules via metabolic pathways.
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