BI-753
Transpiration pull
Biology · Secondary 3 · Easy · Transpiration pull
A tall beaker of water is placed in bright sunlight. A leafy shoot is left in the beaker for several hours. Which process mainly causes water to move up the xylem of the shoot?
- Root pressure only.
- Transpiration pull in the xylem vessels.
- Active transport of water into the leaves.
- Diffusion of water vapour into the roots.
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