Multiple choice

Below freezing point an enzyme is

  1. inactivated

  2. activated

  3. destroyed

  4. unaffected

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Below freezing point, enzymes become inactivated (option A) because molecular motion virtually stops. They are not destroyed - enzyme activity returns when temperature rises above freezing. The 'activated' option incorrectly suggests cold enhances enzyme function.