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NEET 2022
Exam
NEET
Year
2022
Subject
Botany
Chapter
Anatomy of Flowering Plants

NEET 2022 · Botany · Anatomy of Flowering Plants

The ascent of xylem sap in plants is mainly accomplished by the :

The ascent of xylem sap in plants is mainly accomplished by the :

Options

  1. Asize of the stomatal aperture
  2. Bdistribution of stomata on the upper and lower epidermis
  3. Ccohesion and adhesion between water molecules
  4. Droot pressure

Correct answer

C. cohesion and adhesion between water molecules

Step-by-step solution

Ascent of sap in xylem is mainly due to transpiration pull which is supported by physical properties of water such as cohesion and adhesion between water molecules. Cohesion is also called Tensile strength of water molecule.
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