Water molecule is very polar. Polar end of molecule attracts opposite charges on another water molecule (acts like a magnet). How will you explain this property of water with reference to the upward movement of water? Comment on the upward movement of water given the intermolecular hydrogen bonding in water.
The process by which water molecules remain attached to one another via hydrogen bonding in between them is known as the cohesion of the water molecules. The
upward movement of the water through xylem vessels leaves a transpiration pull which does not break due to adhesion. Tensile strength is provided by cohesion which
pulls water from the root to tips.