RAJASTHAN PMT Rajasthan - PMT Solved Paper-2010

  • question_answer
    Which one of the following is not a constituent of cell membrane?

    A)  Cholesterol      

    B)  Glycolipids

    C)  Proline                                

    D)  Phospholipids

    Correct Answer: C

    Solution :

    The lipids of cells membrane are of three types namely phospholipids, glycolipids and sterols. The sterol found in the membrane may be cholesterol (animals), phytosterol (plants) or ergosterol (microorganisms). Cell membrane is made up of lipid and protein (50%) and carbohydrates (2%-10%). Proline is an amino add.


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