NEET 2008 Biology question
Not in NEET syllabus
The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of
Answer: (3)
Solution
Water molecules are held together by cohesion (attraction between water molecules) and to the walls of the xylem vessels/tracheids by adhesion; together with the narrow bore of the vessels these forces give water a high tensile strength, so the water column remains continuous and does not break under the tension
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