Describe the cohesion-tension theory of water transport in the xylemÂ
water transpires from leaves - evaporates from mesophyll cells into air spaces and diffuses through open stomata
reduces water potential in mesophyll cells
water is drawn out of xylem down a water potential gradient
cohesive forces between water molecules due to hydrogen bonding
water is pulled up as a continuous unbroken column
water adheres to xylem walls
water enters root by osmosis