What are Amino Acids made of?Updated a year ago

Amino Acids are molecules that contain an amine group, a carboxylic acid group, and a side-chain that is specific to each Amino Acid. They are considered to be the building blocks of protein, and there are 9 essential Amino Acids (histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine) (Soult, A. 2021).