What conclusion can be drawn concerning an inhibitor if the V_max is the same in the presence and absence of the inhibitor? A) The inhibitor binds to the substrate. B) The inhibitor can be overcome with sufficiently high concentrations of substrate. C) The inhibitor reacts with a critical residue of the enzyme. D) The inhibitor binds to the same active site as the substrate. E) The K_M is smaller in the presence of inhibitor.

Question

Quizplus · Accepted Answer

If the maximum velocity (Vmax) of an enzyme-catalyzed reaction remains the same in the presence and absence of an inhibitor, it suggests that the inhibitor's effects can be overcome by increasing substrate concentration. This is characteristic of competitive inhibition, where the inhibitor and substrate compete for the same active site on the enzyme.

What Conclusion Can Be Drawn Concerning an Inhibitor If the Vmax

What Conclusion Can Be Drawn Concerning an Inhibitor If the V_max