According to the induced fit model
Correct answer: B. The enzyme changes shape to fit the substrate
- A. The active site is rigid
- B. The enzyme changes shape to fit the substrate
- C. The substrate is unchanged
- D. No conformational changes occur
Explanation
Koshland's induced fit model proposes that the enzyme's active site is flexible and changes shape to better accommodate the substrate.
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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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