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The cell membrane is composed of the lipid bilayer. In addition to lipids most membranes contain proteins and carbohydrates. ________________________________________________________________. YOUR finger nails and hair are made out of Keratin. its a protein (so is whale baleen and animal horns)
A cell membrane is composed of a double layer of phospholipids, more commonly referred to as a phospholipid bilayer, and each phospholipid itself is important to the structure â¦ and function of the cell membrane. phospholipid is made up of a hydrophobic (water-avoiding) tail and a hydrophilic (water-liking) head. the OH group in C1 is esterified with a saturated Fatty acid. the OH group iin C2 is esterified with unsaturated fatty acid.