Which step causes activation of catalytic site of an enzyme?
Correct answer: B. Formation of ES complex
- A. Change in pH of enzyme
- B. Formation of ES complex
- C. Change in the shape of substrate
- D. Change in temperature
Explanation
B is correct .Formation of Enzyme Substrate complex is the step causes activation of catalytic site of an enzyme.
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About Mode of Enzyme Action
Enzyme action depends on the active site forming a temporary enzyme substrate complex, then converting substrate into products with lower activation energy. The lock and key and induced fit models explain specificity and binding, while cofactors and changes in enzyme shape can affect catalysis.
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