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    Combined Science GCSE

    Digestion and defence in the stomach

    What Digestion and defence in the stomach means in Combined Science GCSE, as defined for AQA.

    Definition of Digestion and defence in the stomach

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    Reference: AQA

    The low pH provides optimum conditions for protease enzymes that digest proteins, while the acid also kills many pathogens.
    AQA · Human defence systems (study guide)

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