# Root hair cells are specialised for the uptake of water and mineral ions from the soil. Describe four features of root hair cells that make them well adapted for this function.

> Cambridge International IGCSE Biology (0610) — 8.1 Xylem and phloem · Describe · 4 marks

## Mark scheme (4 marks)

1. Root hair cells have long hair-like extensions (root hairs) that increase surface area
2. Water is absorbed by osmosis (into root hair cells)
3. Mineral ions are absorbed by active transport
4. Root hair cells have a thin wall, reducing the diffusion distance

## Key terms

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

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Source: [GradeNine](https://www.gradenine.co.uk/q/root-hair-cells-are-specialised-for-371894cf) · Published by Druglandscape Ltd.