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JAMB Biology 1984 Question 13

Question 13

Food Substances and Enzymes

Which of the following statements is NOT true of enzymes? They

  1. A.are proteins
  2. B.need cofactors to activate them
  3. C.are sensitive to hydrogen ion concentration
  4. D.are specific in their action
  5. E.can withstand high temperatures.
Show the answer and explanation

Answer: E (can withstand high temperatures.)

Explanation

Enzymes are proteins, so high temperatures denature them and they stop working.