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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Water uptake

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4

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3

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Topic

Water uptake

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Paper 4Theory (Extended)3 marks

The role of root hairs in plants is crucial for their survival and growth.

Description

Root Hairs and Their Function

Root hairs are tiny extensions of root cells that significantly increase the surface area available for absorption of water and minerals from the soil.

  1. a

    Explain how the extensive surface area of root hairs enhances the absorption of water and minerals.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Water uptake

Paper 4Theory (Extended)4 marks

Description

Adaptations of Root Hairs

Root hairs are specialized structures that increase the surface area for absorption, playing a vital role in the plant's ability to gather nutrients and water from the soil.

  1. a

    Discuss the importance of root hairs in plant nutrition.

    Aim for approximately 4 distinct marking points.

    [4]