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Cohesion Tension Theory

The hypothesis used to explain how water can travel upwards against gravity in a plant. Transpiration is believed to play a large factor in this, where the cohesive water travels upwards replacing water lost.


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Ascent of Water through Xylem

cohesion of water to the vessel walls Is called the Cohesion-tension theory (Stephen Hales) and is what is used to explain the pulling force from ...

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by Linn
Thu Apr 27, 2006 2:07 pm
 
Forum: Botany Discussion
Topic: Ascent of Water through Xylem
Replies: 10
Views: 7716

Ascent of Water through Xylem

... pulling creates a negative pressure and puts tension onto the water. Since the water has cohesion, it all moves together and pulls at each next molecule ... and the above which is called the Cohesion-Tension theory.

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by mindlessmusings
Wed Apr 26, 2006 11:35 pm
 
Forum: Botany Discussion
Topic: Ascent of Water through Xylem
Replies: 10
Views: 7716


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