Unit 7 · Human Nutrition
Question Bank
Cambridge IGCSE Biology 0610 · 104 questions
Q57Human Nutrition
Why does the stomach contain hydrochloric acid?
(a)To digest starch
(b)To emulsify fats
(c)To kill pathogens and suit pepsin
(d)To neutralise bile
Correct answer: (c) To kill pathogens and suit pepsin
Explanation: Acid kills microorganisms and provides the optimum pH for pepsin.
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