Amino acid - a molecule containing a carboxylic group and amine group, where the amine and carboxylic groups are bonded to the same carbon.
normal
acidified amino acid
basic conditions amino acid
zwitterion - net neutral
woops the r disappeared
Peptide bond - formed by condensation polymerisation of amino acids with each other.
Many peptide bonds $\implies$ polypeptides $\implies$ proteins!!!!
Primary structure - determined by the sequence of alpha amino acids.
