The type of inhibition in which the inhibitor has no structural similarity to the substrate and combines with the enzyme at other than the active site is called:
Correct answer: C. Non-competitive inhibition
- A. Irreversible inhibition
- B. Competitive inhibition
- C. Non-competitive inhibition
- D. Reversible inhibition
Explanation
Non-competitive inhibition occurs when an inhibitor binds to another part of an anzyme, denatures the active site, and inhibits the reaction. The body frequently uses this to monitor and manage enzyme-controlled reactions.
This question appeared on the UHS MDCAT 2012 paper, which you can sit online with every answer explained.
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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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