Same chapter3 marksDifficulty: Medium
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3 marksDifficulty: Medium
Explain competitive inhibition of an enzyme with an example.
Original Khojo Papers practice question — not from a past board paper.
Answer
A competitive inhibitor closely resembles the substrate and binds to the active site of the enzyme, so the substrate cannot. The effect is reduced by raising the substrate concentration. Malonate inhibits succinic dehydrogenase in this way, because it resembles succinate.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
A non-competitive inhibitor binds elsewhere and changes the shape of the active site, and raising the substrate concentration does not help.
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