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Cambridge IGCSE Biology practice

Paper 3 structured question: Chemical digestion

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3

Paper

1

Marks

Topic

Chemical digestion

Exam-style question

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Paper 3Theory (Core)1 marks

Understanding the role of chemical digestion in nutrient absorption.

Description

Chemical Digestion and Absorption

Large molecules like starch and proteins cannot be absorbed directly by the body because they are insoluble.

  1. a

    Identify why large molecules must be broken down during digestion.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Chemical digestion

Paper 3Theory (Core)2 marks

Description

Chemical Digestion

Chemical digestion breaks down large insoluble molecules into smaller soluble molecules that can be absorbed by the body.

  1. a

    Describe what happens during chemical digestion.

    Aim for approximately 2 distinct marking points.

    [2]