BVP Medical BVP Medical Solved Paper-2009

  • question_answer
    The thickness of unit membrane is

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

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

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

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

    Correct Answer: D

    Solution :

                     The unit membrane, described by J David Robertson, was considered as \[75{\AA}\] thick trilaminar (3 layered membrane). According to his unit membrane or trilaminar model, unit membrane consists of \[35{\AA}\]thick bimolecular phospholipid layer between two protein layers, each with \[20{\AA}\]thickness.


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