Question

Identify the statement that is NOT applicable to enzyme catalyzed reaction.

• A. The reaction proceeds with the conversion of the substrate to a higher energy transition state.
• B. Enzymes alter the equilibrium constant of the reaction.
• C. Enzymes decrease the energy of activation required for the reaction.
• D. Some enzymes involve multiple steps of electron transfer.

Hint:

Enzymes change the RATE, not the EQUILIBRIUM.

Answer 1

The Correct Option is B

Step 1: Concept
Enzymes are biological catalysts that speed up the rate of chemical reactions.

Step 2: Meaning
Catalysts work by lowering the activation energy ($E_a$) but they do not change the thermodynamics of the reaction.

Step 3: Analysis
Enzymes accelerate both the forward and reverse reactions equally. Therefore, while they help the reaction reach equilibrium *faster*, they cannot change the final ratio of products to reactants (the equilibrium constant, $K_{eq}$).

Step 4: Conclusion
Statement (B) is false and thus the correct answer to "NOT applicable." Final Answer: (B)