Which of the following statements regarding enzymatic reactions is true?

Which of the following statements regarding enzymatic reactions is true?

• A. The enzyme shifts the equilibrium of the reaction to the right
• B. The enzyme alters the equilibrium constant of the reaction
• C. The enzyme increases the rate of the reaction
• D. The enzyme alters the energy difference between reactants and products

Answer: (C)

Enzymes are biological catalysts that significantly increase the rate of chemical reactions without being consumed in the process. They achieve this by lowering the activation energy required for the reaction to occur, which allows the reaction to proceed more quickly. While enzymes facilitate reaching equilibrium more swiftly, they do not actually shift the position of equilibrium or alter the equilibrium constant, which is determined solely by the free energy difference between reactants and products. This is why stating that an enzyme increases the rate of the reaction is accurate. Understanding this fundamental role of enzymes is vital for grasping how biochemical reactions operate within living organisms.

Enzymes are biological catalysts that significantly increase the rate of chemical reactions without being consumed in the process. They achieve this by lowering the activation energy required for the reaction to occur, which allows the reaction to proceed more quickly. While enzymes facilitate reaching equilibrium more swiftly, they do not actually shift the position of equilibrium or alter the equilibrium constant, which is determined solely by the free energy difference between reactants and products. This is why stating that an enzyme increases the rate of the reaction is accurate. Understanding this fundamental role of enzymes is vital for grasping how biochemical reactions operate within living organisms.