Asked in PMC Practice Test 34 (2021) 2021Moderate

If the temperature of reaction medium increases above the optimum temperature, then _?

Correct answer: D. Both Options B and C are correct

  • A. It increases the enzyme activity
  • B. Stops the reaction
  • C. Decreases the enzyme activity
  • D. Both Options B and C are correct

Explanation

is temperature of a reaction medium increases above the optimum temperature then it stops reaction by decreasing enzyme activity because enzymes are temperature specific.

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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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