CAIE IGCSE Biology 8.2.1 Root hair cells & state their
CAIE IGCSE Biology 8.2.1 Root hair cells & state their
Practise identifying root hair cells and explaining how roots absorb water and mineral ions in seedlings and root diagrams.
How this is tested
- identify root hair cells or roots as the main site of water absorption in plant diagrams
- explain that many large roots give more root hairs and surface area for water and ion uptake
- describe nitrate ion uptake through root hairs by active transport across membranes