Q81 / 200 · NEET 2012 (Screening) · Chemistry

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

  • A
    Enzymes are mostly proteinous in nature
  • B
    Enzyme action is specific
  • C
    Enzymes are denaturated by ultraviolet rays and at high temperature
  • Correct answer
    D
    Enzymes are least reactive at optimum temperature

Solution

Most of the enzymes have proteinous nature. They are highly specific and get denaturated by high temperature or UV rays. At optimum temperature, which is generally in between $25^{\circ}-35^{\circ} \mathrm{C}$, enzyme activity is maximum.

Hence, the correct answer is option: 'D'.

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