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NEET AIPMT SOLVED PAPER MAINS 2010

  • question_answer
    An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called                                                                                         

    A)  thylakoid                           

    B)  endoplasmic reticulum

    C)  plasmalemma  

    D)  cytoskeleton

    Correct Answer: D

    Solution :

    The cytoplasm of all eukaryotic cells is crisscrossed by a network of protein fibres that support the shape of the cell and anchor organelles to fixed locations. This network is called cytoskeleton. It consists of three types of cytoskeletal filaments namely act filaments or microfilaments (formed of globular protein actin), microtubules (formed of tubulin protein) and intermediate filaments (formed of variety of proteins like vimentin, keratin, desmin, periphenn, laimn.etc).


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