According to the cohesion-tension mechanism of water transport, ____ does not contribute to the flow of the xylem sap.

Question

Quizplus · Accepted Answer

Root pressure is not a primary factor in the cohesion-tension mechanism of water transport in plants. This mechanism mainly relies on the cohesion of water molecules to each other, their adhesion to the walls of xylem vessels, and the evaporation of water from leaves (transpiration), creating a tension that pulls water upward from the roots through the xylem. Root pressure can contribute to the movement of water in the xylem under certain conditions, but it is not a driving force in the cohesion-tension theory.

According to the Cohesion-Tension Mechanism of Water Transport, ____ Does