The rise (upward mobility/transportation)of xylem sap by the cohesion-tension mechanism begins at the

Question

Quizplus · Accepted Answer

The cohesion-tension mechanism describes how water is pulled upward through the xylem from the roots to the leaves. This process begins in the leaves, where water evaporates from the surface of the leaves, creating a negative pressure that pulls water up from the roots. Therefore, the rise of xylem sap by the cohesion-tension mechanism begins at the leaves, making choice B the correct answer.

The Rise (Upward Mobility/transportation)of Xylem Sap by the Cohesion-Tension Mechanism