Q. The rupture and fractionation do not usually occur in the water column in vessles/tracheids during the ascent of sap because of

A) Lignified thick walls
B) Cohesion and adhesion
C) Wak gravitational pull
D) Transpiration pull
Explanation

The vertical conduction of water from root to aerial parts of plant is called ascent of sap. The water molecules remain joined to each other due to a force of attraction called cohesion force. Attraction between water molecules and the walls of xylem is due to adhesion force. These factors help to ensure the continuity of water column in xylem.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

Want more practice?
Practice Transport in Plants MCQs