Biology 9700 · AS & A Level · Mode of action of enzymes

Mode of action of enzymes — practice question

Which statement is correct about a competitive inhibitor of an enzyme?

  • Ainhibitor binds to a site on the enzyme other than the active site; the substrate concentration has no effect on the level of inhibition
  • Binhibitor binds to the active site of the enzyme; increasing the substrate concentration decreases the effect of the inhibitor
  • Cinhibitor binds to the active site of the enzyme; the substrate concentration has no effect on the level of inhibition
  • Dinhibitor binds to the enzyme-substrate complex; increasing the substrate concentration decreases the effect of the inhibitor

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