Enzymes Speed Chemical Reactions By

Question

Enzymes speed chemical reactions by
A) supplying energy to the reaction process.
B) raising the temperature of the surroundings.
C) lowering the amount of reactants that are needed.
D) lowering the energy required to start a chemical reaction.
E) maintaining chemical equilibrium.

Accepted Answer

Enzymes lower the activation energy required to start a chemical reaction, allowing the reaction to occur more quickly. This does not involve supplying energy, raising temperature, or maintaining chemical equilibrium. While enzymes can increase reaction rates, they do not necessarily lower the amount of reactants needed, as this is determined by stoichiometry.