First slide
Transpiration
Question

Which of the following is not related with transpiration pull theory?

Easy
Solution

The transpiration driven ascent of xylem sap depends mainly on the following physical properties of water:
• Cohesion – mutual attraction between water molecules.
• Adhesion – attraction of water molecules to polar surfaces (such as the surface of tracheary elements).
• Surface Tension – water molecules are attracted to each other in the liquid phase more than to water in the gas phase.

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