| Front | Describe how water is moved through a plant according to the cohesion-tension hypothesis. ( 4 marks) |
|---|---|
| Back | 1. water evaporates/transpires from leaves; 2. reduces water potential in cell /water potential/osmotic gradient across cells 3. water is drawn out of xylem; 4. creates tension 5. cohesive forces between water molecules; 6. water pulled up as a column; |
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