Here's how it works:
* Cohesion: Water molecules are attracted to each other due to hydrogen bonding. This strong attraction creates a continuous chain of water molecules within the plant's vascular system.
* Adhesion: Water molecules are also attracted to the walls of the xylem vessels (the tubes that transport water in plants). This adhesion helps water stick to the sides of the xylem.
* Transpiration: Water evaporates from the leaves, creating a negative pressure (tension) within the xylem. This tension pulls the cohesive water column upwards.
Together, these forces create a continuous column of water that travels from the roots to the leaves, defying gravity.
