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WAEC Biology 2025 Question 3

Question 3

Animal Nutrition

The diagram below is an illustration of a system in humans. Enzymatic digestion of protein begins in the part labelled

Diagram for this question
  1. A.IV.
  2. B.III.
  3. C.II.
  4. D.I.
Show the answer and explanation

Answer: D (I.)

Explanation

Protein digestion starts in the stomach, labelled I, where pepsin breaks proteins into peptones.