The movement of water from a root hair cell through the cortex until it reaches the central xylem tissue occurs through a process called transpiration. This process involves water uptake by root hairs, movement through the cortex via osmosis and diffusion, and ultimately entering the xylem vessels for transportation up the plant. Additionally, the cohesion-tension theory explains how water molecules form a continuous column in the xylem, aiding in upward water movement.
