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Plant Water Relation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYPlant Water Relation3 Marks
Question
What are adhesive and cohesive forces?
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Answer

  1. Adhesive and cohesive forces are attractive forces between molecules of same substance.
  2. Cohesive forces exist between molecules of the same type. E.g. between water-water molecule.
  3. Adhesive forces exist between dissimilar molecules. E.g. water molecule and lignin deposited wall of xylem element.

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