Biology for IGCSE & O level - Transport In Plants (Section 5 - No. 23)
What is the role of cohesion and adhesion in the transpiration stream?
Cohesion helps water molecules stick to each other.
Adhesion helps water molecules stick to the xylem walls.
Cohesion helps water molecules move up the xylem.
Adhesion is less important in water transport.
Explanation
Cohesion and adhesion are essential for creating the continuous water column needed for the transpiration stream.
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