Enzyme Structure

AP Biology· difficulty 2/5

Enzyme Substrate fits Wrong shape X

What does this diagram illustrate about enzyme function?

  • A

    Enzymes are consumed during the reaction

  • B

    Enzymes denature when substrates fit

  • C

    All substrates can be acted on by any enzyme

  • D

    Substrate specificity - only molecules with complementary shape bind the active site

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Explanation

Active sites have specific 3D shapes. Only substrates whose shape and chemistry match (induced fit) can bind effectively.

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