<prompt> Glycine is present inHemoglobinGulatathionePurineAll  <response>: ref pg no.284, table22.1, textbook of biochemistry for medical students. Seventh edition . for optn A Ref pg no.199,textbook of biochemistry for medical students, seventh edition.for optn B .glutathione is gamma glutamyl cystenyl glycine. Ref pg no.563,fig43.10,textbook of biochemistry for medical students, seventh edition. for optn C.p 