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Enzyme Function

Definition

The specific biochemical activity of an enzyme, often involving the conversion of a certain substance (substrate) into another (product).

Analogy

Think of an enzyme as a highly skilled locksmith. Just like how a locksmith can shape a key to fit perfectly into a lock, enzymes are able to bind with specific molecules (the substrates) and transform them into something else (the products).

Related terms

Substrate: The molecule upon which an enzyme acts.

Active Site: The region on the enzyme where the substrate binds.

Catalyst: A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.