Enzymes catalyze biochemical reactions by
a. Lowering the potential energy of the products
b. Separating inhibitors from products
c. Forming a complex with the products
d. Lowering the activation energy of the reaction
e. Providing energy to the reaction
. D: Enzymes act as catalysts for biochemical reactions. A catalyst is not consumed in a reaction, but, rather, lowers the activation energy for that reaction. The potential energy of the substrate and the product remain the same, but the activation energy—the energy needed to make the reaction progress—can be lowered with the help of an enzyme.