Enzymes function most effectively over a narrow range of pH known as:
Correct answer: A. Optimum pH
- A. Optimum pH
- B. Optimum temperature
- C. Enzyme concentration
- D. Substrate concentration
Explanation
Enzymes exhibit their highest activity at a specific pH level, referred to as the optimum pH. This is the range in which enzymes can catalyze reactions most effectively. The other options do not pertain to pH: optimum temperature relates to temperature conditions, enzyme concentration refers to the amount of enzyme, and substrate concentration relates to the availability of substrate. Therefore, understanding that optimum pH is crucial for enzyme function helps in identifying the correct answer.
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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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