Explain the cohesion-tension-transpiration pull model of water transport.

(N/A) - In plants,the upward movement of water through the $Xylem$ due to transpiration is primarily dependent on the following physical properties:
- $Cohesion$ $Force$: The mutual attraction between water molecules.
- $Adhesion$ $Force$: The 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 strongly than to water in the gas phase.
- These properties provide water with high tensile strength,which is the ability to resist a pulling force,and high capillarity.
- $Capillarity$ is the ability to rise in thin tubes. In plants,capillarity is aided by the small diameter of the tracheary elements,specifically the tracheids and vessel elements.