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NEET2022BotanyAnatomy of Flowering PlantsActual

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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