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.