Draw and explain general structure of amino acid

1.	Draw and explain general structure of amino acid
Answer» Amino acids\xa0are molecules used to build proteins. All\xa0amino acids\xa0have a central carbon atom surrounded by a hydrogen atom, a carboxyl group (COOH), an\xa0amino\xa0group (NH2), and an R-group.\xa0An\xa0amino acid\xa0is a carboxylic\xa0acid-containing an aliphatic primary\xa0amino\xa0group in the α position to the carboxyl group and with a characteristic stereochemistry. Proteins are biosynthesized from 20\xa0amino acids\xa0in a system involving strict genetic control. Thus,\xa0amino acids\xa0are the\xa0basic\xa0unit of proteins. The\xa0general\xa0linear\xa0formula of\xa0an\xa0amino acid\xa0is R-CH(NH2)-COOH. The 20 common\xa0amino acids\xa0are grouped in classes according to their side chains: Click here for IMGT classes of the 20 common\xa0amino acids\xa0\'Physicochemical\' properties.\xa0Twenty Amino acids\xa0can be grouped according to the characteristics of the side chains as follows: Aliphatic – alanine, glycine, isoleucine, leucine, proline, valine. Aromatic – phenylalanine, tryptophan, tyrosine. Acidic – aspartic\xa0acid, glutamic\xa0acid.

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