Exit presenter|Plant Water Transport and Transpiration
1 / 8

Hook

How does water reach the top of a tree?

  • No pump like a heart — yet leaves transpire litres of water on a sunny day.
  • Cohesion, adhesion, and pressure differences move the column.
stem xylemleaves — transpirationroot hairscohesion–adhesionphloem: sugars ↓↑
Xylem transport and transpiration pull