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MHT CET 202624 AprilEvening Shift
Exam
MHT CET
Year
2026
Date
24 April
Shift
Evening Shift
Subject
Biology
Chapter
Transport in Plants

MHT CET 2026 · 24 April · Evening Shift · Biology · Transport in Plants

Water can easily rise through the conducting elements of xylem due...

Water can easily rise through the conducting elements of xylem due to _____.

Options

  1. AWater has high specific heat.
  2. BWater has high surface tension and high adhesive and cohesive force.
  3. CWater has high heat of vaporization.
  4. DWater has high heat of fusion.

Correct answer

B. Water has high surface tension and high adhesive and cohesive force.

Step-by-step solution

The ascent of sap in the xylem is primarily driven by the physical properties of water, which include cohesion, adhesion, and surface tension.

Cohesion is the mutual attraction between water molecules.

Adhesion is the attraction of water molecules to polar surfaces, such as the walls of xylem vessels and tracheids.

Surface tension allows water molecules to remain together and resist being pulled apart.

Together, these properties provide water with high tensile strength and capillarity, enabling it to rise against gravity in the narrow conducting elements of the xylem.

Answer: Water has high surface tension and high adhesive and cohesive force.
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