Multiple choice

Xylem channels of which of the following plant parts possess the lowest water potential?

  1. Stem

  2. Root

  3. Leaves

  4. Root hairs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Leaves have the lowest water potential due to transpiration creating negative pressure (tension). This strong water potential gradient pulls water upward from roots through the xylem vessels, facilitating upward water movement.

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