Which one of the following factors does not affect the rate of enzyme action?
Correct answer: C. Light intensity
- A. Enzyme concentration
- B. Substrate concentration
- C. Light intensity
- D. Temperature
Explanation
Light intensity does not directly affect enzyme activity because enzymes are not influenced by light. They are affected by factors like temperature, pH and concentrations of enzyme and substrate.
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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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