Q. The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of
A) Transpiration pull
B) Lignified thick walls
C) Cohesion and adhesion
D) Weak gravitational pull
Explanation
[Solution from source] Water molecules cohere strongly to one another and adhere to the walls of the xylem conduits, so the column under tension stays continuous instead of breaking. Transpiration pull creates the tension but does not by itself stop the column from breaking. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.