# Explain why root hair cells are well adapted for absorbing water and mineral ions from the soil.

> Eduqas GCSE Biology — 1.5.1 Plant structure and function · Explain · 4 marks

## Mark scheme (4 marks)

1. Root hair cells have a large surface area
2. Which increases the rate of absorption / allows more water and mineral ions to be absorbed
3. Water moves into root hair cells by osmosis (down a water potential gradient)
4. Mineral ions are absorbed by active transport (requiring energy)

## Key terms

- [root hair cells](https://www.gradenine.co.uk/glossary/root-hair-cells)
- [mineral ions](https://www.gradenine.co.uk/glossary/mineral-ions)

## Related

- [Revision notes for Eduqas GCSE Biology](https://www.gradenine.co.uk/learn)
- [How to answer "Explain" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/explain-why-root-hair-cells-are-cffd3b6a) · Published by Druglandscape Ltd.