Question

Biochemical reactions are carried out by enzymes

• A. By decreasing the energy of the reactants
• B. By increasing the activation energy of the reaction
• C. By decreasing the activation energy of the reaction
• D. By increasing the energy of the products of the reaction
• E. By decreasing the energy of the products of the reaction

Answer 1

The correct option is C By decreasing the activation energy of the reaction

Any chemical reaction includes the formation of transition state between reactant and product. The energy required for formation of the transition state is termed as activation energy. Enzymes enhance the rate of reaction by lowering down the activation energy of transition state. Thus, the correct answer is option C.