Multiple choice

Forces generated by transportation can create pressures sufficient to lift a xylem sized column of water over

  1. 100 meters high

  2. 110 meters high

  3. 120 meters high

  4. 130 meters high
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Transpiration generates negative pressure (tension) in the xylem through water evaporation from leaves. This transpiration pull, combined with water's cohesive properties and adhesion to xylem walls, can theoretically support a water column up to 130 meters high. This explains how tall trees like coastal redwoods transport water to their crowns.

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