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  3. CET Karnataka Medical

CET Karnataka Medical CET - Karnataka Medical Solved Paper-2005

  • question_answer
    The inner, darker and harder portion of secondary xylem that cannot conduct water, in an older dicot stem, is called:

    A)  alburnum     

    B)  bast

    C)  wood        

    D)  duramen

    Correct Answer: D

    Solution :

    The inner, darker and harder portion of secondary xylem that can not conduct water, in an older dicot stem is known as heart wood or duramen whereas the outer, functional, water conducting, younger secondary xylem constitute the sap wood or alburnum.


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