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WAEC Biology 2020 Question 26

Question 26

Food Substances and Enzymes

Which of the following statements about a mixture of a protein-digesting enzyme and starch solution would be correct? The protein-digesting enzyme

  1. A.has no effect on the starch solution.
  2. B.leads to the production of amino acids.
  3. C.leads to the production of glucose.
  4. D.digests the starch.
Show the answer and explanation

Answer: A (has no effect on the starch solution.)

Explanation

Enzymes are specific: a protease acts only on proteins, so it leaves the starch unchanged.