Biology for IGCSE & O level - Enzymes (Section 2 - No. 3)
What is the effect of a competitive inhibitor on an enzyme-catalyzed reaction?
It binds to the enzyme at a site different from the active site.
It increases the rate of the reaction.
It prevents the substrate from binding to the active site.
It changes the shape of the active site, decreasing its affinity for the substrate.
Explanation
Competitive inhibitors block the active site, preventing substrate binding.
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