This figure represents a _ inhibitor.

Correct answer: A. Non-competitive

  • A. Non-competitive
  • B. Competitive
  • C. Irreversible
  • D. Isosteric

Explanation

In noncompetitive inhibition, the inhibitor binds at an allosteric site separate from the active site of substrate binding. Thus, in noncompetitive inhibition, the inhibitor can bind its target enzyme regardless of the presence of a bound substrate.

This question appeared on the UHS MDCAT 2016 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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