<prompt> All of the following amino acids forms acetyl CoA Pyruvate Dehydrogenase EXCEPTGlycineHydroxyprolineTyrosineAlanine  <response>: Six amino acids form pyruvate during catabolism. They are Glycine, Alanine, Serine, Threonine, Cysteine and Hydroxy-Proline see fig. 