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Cambridge IGCSE Biology practice

What is one role of hydrochloric acid in gastric juice?

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Show answerChemical digestion revisionRevise the key idea

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cambridge_mcq

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Chemical digestion

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What is one role of hydrochloric acid in gastric juice?.

  1. A.To neutralize stomach enzymes
  2. B.To kill harmful microorganisms in food
  3. C.To digest carbohydrates
  4. D.To absorb nutrients

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Description

Hydrochloric Acid in Gastric Juice

Hydrochloric acid is a component of gastric juice that helps in digestion.

  1. a

    Describe one role of hydrochloric acid in gastric juice related to microorganisms in food.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Describe one way hydrochloric acid helps enzymes in the stomach to digest food.

    Aim for approximately 1 distinct marking point.

    [1]