Question

Elucidate the relation between cohesion between molecules and a continual water potential gradient between leaf and root cells

Answer 1

Explanation:

The cohesion – tension theory of sap ascent explains how how water is pulled up from the roots to the top of the plant. Evaporation from mesophyll cells in the leaves produces a negative water potential gradient that causes water and minerals to move upwards from the roots through the xylem.