© Boardworks Ltd 20081 of 34. 2 of 34© Boardworks Ltd 2008 Components of the membrane

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3 of 34© Boardworks Ltd 2008 What are phospholipids? The shape of the structures that phospholipids form is due to their polar nature, and the way they interact with water. One of the main components of membranes are phospholipids, a type of lipid made from two fatty acid chain ‘tails’ attached to a phosphate group ‘head’. The phosphate group head is polar and hydrophilic (‘water- loving’), while the fatty acid chains of the tail are non-polar and hydrophobic (‘water-hating’). hydrophilic head hydrophobic tails