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found in mammals, are where globules of fat are stored for later use. Oil or fat is stored in seeds of plants and
used as a source of energy during the development of the embryo.
Phospholipids
are the major constituent of the plasma membrane. They are made up of fatty acid
chains joined to a glycerol or other similar backbone, just like fats. The glycerol backbone's third carbon is
bonded to a phosphate group, so there are only two fatty acids attached as opposed to three. An alcohol is added
to the phosphate group to change it.
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