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 RESULT (Equilibrium).

Answer 1

The Correct Option is B

Step 1: Concept
Enzymes are biological catalysts that speed up the rate of chemical reactions without being consumed.

Step 2: Meaning
Catalysts work by lowering the activation energy barrier, allowing the reaction to reach equilibrium faster.

Step 3: Analysis
Crucially, catalysts (including enzymes) do *not* change the thermodynamics of a reaction. They do not shift the position of equilibrium or change the Equilibrium Constant ($K_{eq}$); they only affect the *kinetics* (speed) at which that equilibrium is reached.

Step 4: Conclusion
The statement that enzymes alter the equilibrium constant is false. Final Answer: (B)