Which of the Following Statements Regarding Enzymes is True

Question

Which of the following statements regarding enzymes is true?
A) Enzymes increase the rate of a reaction by making the reaction more exergonic.
B) Enzymes increase the rate of a reaction by lowering the activation energy barrier.
C) Enzymes increase the rate of a reaction by reducing the rate of reverse reactions.
D) Enzymes change the equilibrium point of the reactions they catalyze.
E) Enzymes make the rate of a reaction independent of substrate concentrations.

Accepted Answer

Enzymes increase the rate of a reaction by lowering the activation energy barrier, which allows the reaction to occur more easily and quickly. This does not change the equilibrium point or make the reaction independent of substrate concentrations. Enzymes can affect reverse reactions, but this is not how they primarily increase the rate of a reaction.