BCECE Medical BCECE Medical Solved Papers-2014

  • question_answer
    The thickness of unit membrane is

    A)  20\[\overset{o}{\mathop{A}}\,\]             

    B)  35 \[\overset{o}{\mathop{A}}\,\]

    C)  55 \[\overset{o}{\mathop{A}}\,\]

    D)  75 \[\overset{o}{\mathop{A}}\,\]

    Correct Answer: D

    Solution :

    The unit membrane described by J David Robertson was considered as 75 A thick. According to his unit membrane or trilaminar model, unit membrane consists of 35 \[\overset{o}{\mathop{A}}\,\] thick bimolecular pnospholipid layer between two protein layers each with 20 \[\overset{o}{\mathop{A}}\,\] thickness.


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