Enzyme:Structure-Function-factors

Front

A biological catalyst that speeds up chemical reactions without being consumed.

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Enzyme

Front

The molecule upon which an enzyme acts.

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Substrate

Front

The specific region on an enzyme where the substrate binds.

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Active Site

Front

The molecules produced from the enzyme-catalyzed reaction.

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Product

Front

A substance that speeds up a reaction by lowering activation energy.

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Catalyst

Front

A non-protein molecule (usually a metal ion) that helps enzymes function.

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Cofactor

Front

An organic cofactor, often derived from vitamins, that assists enzyme activity.

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Coenzyme

Front

The protein portion of an enzyme, without its cofactor.

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Apoenzyme

Front

A complete, active enzyme that includes both the apoenzyme and its cofactor.

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Holoenzyme

Front

A secondary binding site on an enzyme that regulates activity when a molecule binds.

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Allosteric Site