NEET · BiologyMedium
The transition state energy of a substrate is lowered by an enzyme. What is the effect on the activation energy?
- A.Activation energy increases.
- B.Activation energy remains unchanged.
- C.Activation energy decreases.
- D.Activation energy becomes zero.
Show correct answer & step-by-step solution
Correct answer: C — Activation energy decreases.
Solution
- Activation energy is the energy difference between the substrate and the transition state.
- Enzymes bind to the substrate to form an enzyme-substrate complex.
- This complex lowers the energy level of the transition state.
- Lowering the transition state energy reduces the activation energy required for the reaction.
- Hence the answer is (C).
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