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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Osmosis

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Osmosis

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Paper 3Theory (Core)3 marks

Understanding osmosis is crucial in biological systems.

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Osmosis in Cells

Osmosis is the movement of water through a partially permeable membrane. This process is vital for maintaining cell structure and function.

  1. a

    Explain the process of osmosis and its importance in cells.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Osmosis

Paper 3Theory (Core)2 marks

Description

Osmosis and Plant Cells

Plant cells rely on osmosis to maintain turgor pressure, which is crucial for their upright structure.

  1. a

    Discuss the effects of osmosis on plant cells in different solutions.

    Aim for approximately 2 distinct marking points.

    [2]