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Cambridge IGCSE Biology practice

Paper 3 structured question: Osmosis

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3

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2

Marks

Topic

Osmosis

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Paper 3Theory (Core)2 marks

Water is essential in living organisms for various processes.

Description

Water as a Solvent

Water dissolves many substances, which helps in digestion, excretion, and transport within organisms.

  1. a

    Describe how water functions as a solvent during digestion.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Osmosis

Paper 3Theory (Core)3 marks

Description

Water in Excretion and Transport

Water dissolves waste products for excretion and carries dissolved substances in the blood.

  1. a

    Describe how water functions as a solvent in excretion and transport.

    Aim for approximately 3 distinct marking points.

    [3]