Ace the Biology CLEP 2026 – Get Prepped to Conquer Science!

Enzymes lower the activation energy requirements for biochemical reactions through catalysis. This means that they speed up the reactions by providing an alternative pathway with a lower energy barrier, making it easier for reactants to come together and form products. Choices B, C, and D (metabolism, replication, and organization) are incorrect because while they may also play important roles in biochemical reactions, they do not directly contribute to lowering activation energy requirements. Metabolism refers to all the chemical processes that occur in an organism, including reactions catalyzed by enzymes. Replication is the process of copying genetic material, which is necessary for cell division and growth but does not directly affect the energy required for reactions. Organization refers to the structure and arrangement of components within a system, which can affect the efficiency of reactions but does not play a direct role in lowering activation energy.