The active site of an enzyme is
Correct answer: B. A specific region where substrate binds
- A. The entire enzyme surface
- B. A specific region where substrate binds
- C. The coenzyme binding site
- D. Where allosteric regulators bind
Explanation
The active site is a specific pocket or cleft on the enzyme where the substrate binds and catalysis occurs.
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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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