amino acids

• amino acids have 2 different functional groups in a molecule
• GLYCINE:

  H2NCH2COOH

  
• amino acids react by condensation polymerisation to produce polypeptides

  ( and molecule of water)
• glycine polymerisation:

  n = no of glycine molecules in the reaction

  because the polymer is made from only 1 type of amino acids = POLYPEPTIDE

  
• different amino acids can be combined in the same chain to produce protein