Why Is Capillary Action Alone Unable to Account for the Movement

question 111

Multiple Choice

Why is capillary action alone unable to account for the movement of water through the xylem?

• A) Capillary action cannot move water and solutes.
• B) Capillary action cannot move water against the force of gravity.
• C) The force of tension within the xylem is not adequate to move water with the force of capillary action.
• D) Trees are too tall for capillary action alone to account for the flow of water.
• E) Trees are too tall and xylem vessels are too wide for capillary action alone to account for the flow of water.

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