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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Digestion

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4

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3

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Topic

Digestion

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Paper 4Theory (Extended)3 marks

Chemical digestion is essential for nutrient absorption in the human body.

Description

Chemical Digestion Process

Chemical digestion involves the breakdown of food into smaller, soluble molecules through the action of enzymes.

  1. a

    Explain the importance of chemical digestion in the human body.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Digestion

Paper 4Theory (Extended)4 marks

Description

Digestive Processes

Mechanical digestion involves physical breakdown, while chemical digestion involves enzymatic breakdown of food.

  1. a

    Compare the roles of mechanical and chemical digestion in nutrient absorption.

    Aim for approximately 4 distinct marking points.

    [4]