Punjab Medical Punjab - MET Solved Paper-2010

  • question_answer
    The closing and opening of the leaves of Mimosa pudica is due to

    A)  chemonastic movement

    B)  ther monastic movement

    C)  seismonastic movement

    D)  hydrotropic movement

    Correct Answer: C

    Solution :

    Seismonastic movements are nastic movements of turgor in response to stimulus of shock   (like   touch/mechanical/electrical/ thermal/chemical shock). On touching Mimosa pudica, its leaves droop down and the stimulus travels at the speed of 1 cm/sec.


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