Malonic acid is an example of____________?
Correct answer: C. Competitive inhibitor
- A. Irreversible inhibitor
- B. Reversible inhibitor
- C. Competitive inhibitor
- D. Non-competitive inhibitor
Explanation
Malonic acid resembles succinic acid and competes with it for the active site of succinate dehydrogenase, so it is a competitive inhibitor. Students often choose reversible inhibitor because malonic acid binds reversibly, but competitive inhibition gives the more specific classification.
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About Enzyme Inhibitors
Enzyme inhibitors reduce reaction rate by interfering with enzyme-substrate interaction or catalytic activity. Coverage includes reversible competitive, non-competitive and uncompetitive inhibition, the effects of inhibitor concentration on reaction rate, and why competitive inhibition can be reduced by increasing substrate concentration.
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