WAEC Biology 2022 Question 25

Question 25

Food Substances and Enzymes

Diagram J is a protease while diagrams K, L, M and N are food substances.
Which of the illustrated food substances would form a reaction with protease J?

Diagram for this question
  1. A.K
  2. B.L
  3. C.M
  4. D.N
Show the answer and explanation

Answer: B (L)

Explanation

L has a square projection that fits exactly into the square notch (active site) of J, like a key in a lock.