Advantages of Proteins

Proteins are compounds of carbon, hydrogen, oxygen and nitrogen. On an  average, proteins contain 16% nitrogen. Most proteins also contain sulphur and some proteins contain iron, copper, phosphorus and zinc. Proteins are, in  fact, polymers  consisting oj chains  of monomeric  units.  The chains are essentially linear  and  contain  no branches. The monomeric units of proteins are amino acids (which you may already know are the building blocks of the body) and the  linkage between  two amino acids is called apeptide bond.