CET Karnataka Medical CET - Karnataka Medical Solved Paper-2007

  • question_answer
    The first process by which water enters into the seed coat when a seed is placed in suitable environment for germination is

    A)  osmosis

    B)  active transport

    C)  absorption

    D)  imbibitions

    Correct Answer: D

    Solution :

    Water is absorbed by germinating seeds through the process of imbibition and help in rupturing of  seed coat. Imbibition is the process of absorption of water by hydrophilic surfaces of a substance without forming a solution. It is a type of diffusion by which movement of water takes place along a diffusion gradient. During the process of imbibition volume of imbabant is changed, heat is produced and imbibitional pressure is developed.


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