Uttarakhand PMT Uttarakhand PMT Solved Paper-2004

  • question_answer
    Choanocyte is an ascon type of canal system, which is lined by :

    A)  porocyte   

    B)  incurrent

    C)  apopyle     

    D)  spongocoel

    Correct Answer: D

    Solution :

    Canal system of Liuosolenia is of ascon type. It is the simplest type of canal system found in sponges, in this ostia, spongocoel and osculum together form a canal system. Water enters directly through ostia into the central spongocoel which is lined by choanocytes and leaves through osculum.


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