OCR GCSE Biology A · J247
Specification B2.1a, B2.2f, B3.3f, PAG 8 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A measure of the tendency of water molecules to move from one region to another.
Revise: Transport in cellsOsmosis is a special case involving water. It is the net movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane.
- Revise: Water and mineral uptake
A measure used to predict the direction in which water moves: water moves by osmosis from higher to lower water potential.