Biology for IGCSE & O level - Enzymes (Section 4 - No. 31)

How does the shape of the active site contribute to an enzyme's function?
The active site is flexible and can change shape to fit any substrate.
The active site has a shape that is complementary to the shape of the substrate.
The active site has no effect on the enzyme's function.
The active site breaks down the substrate.

Explanation

The complementary shape of the active site allows for the specific binding and interaction with the substrate.

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