How does water move from the ground up to the leaves of a plant?
- Roots do more than just anchor a plant in the ground - they take up water and mineral salts from the soil
- The surfac of roots have specialised root hair cell with long thin extensions that reach into the surrounding soil
- The root hairs provide a large surface area for substances to enter the root
Osmosis and active transport
- Water enters the root hair cells by osmosis. In this proces, water moves across a partially permeable membrane (a membrane that only certain substances can pass through) from a region where water in in higher concentration to a region where it is in lower concentation
- Roots can absorb nitrate and other mineral ions…