AIPMT MAIN2008Botany-Transport in Plants
AIPMT MAIN 2008 Botany Ascent of Sap MCQ Question
Type: MCQ-conceptual-Medium
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
Correct Answer
Option C
Detailed Explanation
Continuity of the water column is maintained by cohesion and adhesion forces between water molecules and the walls of the vessels.
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