Amino acids are the monomers that form the proteins.
Proteins contains linear chains of amino acids called the peptide bond.
Two amino acids joins through amino group [tex]\bold{(NH_2)}[/tex] of one and carboxylic group [tex]\bold{(COOH)}[/tex] of other by loss of a water molecule [tex]\bold{(H_2O)}[/tex]
Amino acids which occur in proteins in human are of 20 types.
