The working of sucrase and maltase can be explained by:
Correct answer: B. Lock and key
- A. Induce fit model
- B. Lock and key
- C. Both models
- D. None
Explanation
The lock and key model is the correct explanation for the working of sucrase and maltase. In this model, the enzyme's active site (the "lock") has a specific shape that matches the substrate molecule's shape (the "key"). This ensures substrate specificity and efficient catalysis.
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About Enzymes
Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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