At temperature higher than optimum, enzymatic activity decreases because of:
Correct answer: C. Denaturation
- A. Saturation
- B. Inhibition
- C. Denaturation
- D. Composition
Explanation
Enzymes are protein in nature. At a temperature higher than optimum temperature, the 3D shape of active site denatures and substrate molecules can no longer fit into it. This is termed as denaturation of enzymes.
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About Factors Affecting Enzyme Action
Enzyme activity changes with temperature, pH, substrate concentration and enzyme concentration because these factors affect molecular collisions and the active site. Questions also examine optimum conditions, denaturation and inhibition, while distinguishing a fall in activity caused by unsuitable conditions from permanent enzyme damage.
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