11th Class Biology Transportation in Animals and Plants

  • question_answer 48)
    Describe briefly the three physical properties of water which helps in ascent of water in xylem.

    Answer:

                      The three physical properties of water that helps in ascent up to xylem are as given
    Cohesive properties Adhesive properties Surface tension Mutual attraction between molecules Attraction of water molecules to polar surfaces (of tracheids) Water molecules get attracted to each other more in liquid phase than in gas phase.
     


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