What are Large molecules made of carbon and hydrogen atoms?
Proteins are the large molecules that are made up of Carbon,
Hydrogen, Oxygen and sulphur. Carbon, Hydrogen and oxygen are
chiefly present in all the biomolecules. But the proteins contain
sulphur as their one of the components, as DNA have Phosphorus as
one of their important component. Two amino acids, Methionine and
Cysteine, contain sulphur in their side chain. When these amino
acids are incorporated in the proteins, sulphur is added to the
proteins. Sulphur present in cysteine, as a thiol group, play a
crucial role in the stability of the proteins as they form
disulphide bonds.
Apart from that, two polysaccharides also contain sulphur.
Chondroitin -4- Sulphate is a polymer of repeating unit of
Glucuronic acid and NAcetylGalactosamine that is sulphated at the
fourth carbon. The other polysaccharide is Kertan Sulphate. It has
repeating units of Galactose and NAcetylGlucosamine sulphated at
6th carbon.