AP BIOLOGY

Detailed explanation-1: -Root pressure is that force that helps to drive fluids upward into the water-conducting vessels (xylem) due to osmotic pressure in the root cells. Transpiration pull is said to be a suction force used to draw the water in an upward direction from the roots towards the leaves.

Detailed explanation-2: -A transpiration pull could be simply defined as a biological process in which the force of pulling is produced inside the xylem tissue. This force helps in the upward movement of water into the xylem vessels. In this process, loss of water in the form of vapours through leaves are observed.

Detailed explanation-3: -Xylem sap moves from the root, up the stem, through the petiole, and then to the leaves in these hollow dead xylem “cells, ” with motion occurring in the direction of decreasing hydrostatic pressure.

Detailed explanation-4: -Transpiration pull or the suction force is the force which aids in drawing the water upward from roots to leaves. In leaves, some amount of water is used for photosynthesis and excess water is released into atmosphere through openings called as stomata.