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What makes up cellular membranes?

obviously cells aren't made of smaller cells, so what proteins or molecules make up the membranes that cells are made of?

2 Answers

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  • Jim
    Lv 7
    1 year ago
    Favorite Answer

    Cell wall composition varies depending on the organism. In plants, the cell wall is composed mainly of strong fibers of the carbohydrate polymer cellulose.

    Bacterial cell walls are composed of a sugar and amino acid polymer called peptidoglycan.

    The main components of fungal cell walls are chitin, glucans, and proteins.

  • 1 year ago

    A cell membrane is made of a phospholipid bilayer, with some proteins embedded in that.  The proteins provide selective permeability and also functionality (chemosensors) and identification (self).

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