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

Mode of action of enzymes — practice question

Which row shows the anticipated effect on $V_{\max}$ and $K_{m}$ when a competitive reversible inhibitor is introduced into an enzyme-catalysed reaction?

  • Aeffect on $V_{\max}$: no change; substrate concentration at $K_{m}$: increases
  • Beffect on $V_{\max}$: no change; substrate concentration at $K_{m}$: no change
  • Ceffect on $V_{\max}$: decreases; substrate concentration at $K_{m}$: increases
  • Deffect on $V_{\max}$: decreases; substrate concentration at $K_{m}$: no change

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