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Which one of the following statements is INCORRECT about enzyme catalysis?

  1. A
    Enzymes are least reactive at optimum temperature
  2. B
    Enzymes are mostly proteinous in nature
  3. C
    Enzyme action is specific
  4. D
    Enzymes are denaturated by ultraviolet rays and at high temperature

Solution & Step-by-step Explanation

1. Incorrect: Enzymes show maximum activity at a specific temperature called the optimum temperature. Therefore, saying they are "least reactive" at optimum temperature is false.2. Correct: Almost all enzymes are proteins.3. Correct: Enzymes are highly specific to the substrate and reaction they catalyze.4. Correct: Enzymes lose their tertiary structure (denature) when exposed to high heat or UV radiation.

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Which one of the following statements is INCORRECT about enzyme catalysis?
A
Enzymes are least reactive at optimum temperature
B
Enzymes are mostly proteinous in nature
C
Enzyme action is specific
D
Enzymes are denaturated by ultraviolet rays and at high temperature

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