RAJASTHAN PMT Rajasthan - PMT Solved Paper-2008

  • question_answer
    In plants, water supply is due to

    A)  osmosis                              

    B)         imbibition

    C)         guttation                           

    D)         adhesion force

    Correct Answer: D

    Solution :

    The force between walls and water called adhesion force. Diffusion of water from its pure or dilute solution into a stronger solution when the two are separated by a semi-permeable membrane is termed as osmosis. In plants water supply is due to osmosis. The absorption of water by the solid particles of an adsorbant without forming a solution is called imbibition. The loss of water in the form of liquid droplets from the leaves and other parts of an uninjured or intact plant is called guttation.


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