How many different kinds of monomers are there in starch?

Starch, proteins and nucleic acids have different quantity of monomers each. Starch has got 5 monomers and they are maltose, cellobios, sucrose, trehalose and sucrose. There are 20 monomers present in proteins and they are mainly amino acids of different kinds. Nucleic acids on the other hand again has 5 monomers. The 5 monomers present in nucleic acid are adenine, uracil, thymine, cytosine and guanine. Various kinds of organic molecules like the proteins, lipids, carbohydrates etc. are made up of monomers.