Punjab Medical Punjab - MET Solved Paper-2001

  • question_answer
    Major function of roots growing in air of marshy plants growing in saline soil is

    A)  absorption of nutrients

    B)  absorb moisture

    C)  salt injury

    D)  respire

    Correct Answer: D

    Solution :

    The roots of some plants growing in saline marshes (mangrove plant) suffer from oxygen. This is due to water lagged condition of the soil. In this situation some root branches grow vertically upwards for gaseous exchange.


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