# Describe the pathway taken by water as it moves from the soil into the air spaces inside a leaf, naming the structures involved.

> Cambridge International IGCSE Biology (0610) — 8.3 Transpiration · Describe · 4 marks

## Mark scheme (4 marks)

1. Water enters the plant through root hair cells by osmosis
2. Water passes through the root cortex cells (by osmosis) before reaching the xylem
3. Water is transported up the stem to the leaves through the xylem
4. Water evaporates from the surface of mesophyll cells into the air spaces inside the leaf

## Key terms

- [air spaces](https://www.gradenine.co.uk/glossary/air-spaces)

## Related

- [Revision notes for Cambridge International IGCSE Biology (0610)](https://www.gradenine.co.uk/learn)
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Source: [GradeNine](https://www.gradenine.co.uk/q/describe-the-pathway-taken-by-water-0c76de41) · Published by Druglandscape Ltd.