The movement of water up the stems of tall plants is least dependent on which of the following factors?

Question

Quizplus · Accepted Answer

Guttation, the exudation of liquid water from the tips or edges of leaves, is not a major factor in the upward movement of water in tall plants. Transpiration, the loss of water vapor through the stomata on leaves, creates a negative pressure gradient that pulls water up the stem. Cohesion of water molecules and tension within water columns also contribute to this movement. However, guttation is not directly involved in this process.

The Movement of Water Up the Stems of Tall Plants