Golgi body Organelle of lipid assembly, polypeptide chain modification, and packaging of both in vesicles for export or for transport to locations in the cytoplasm /tomembrane system Gk. kytos, hollow vessel] Organelles, functioning as a system to modify, package, and distribute newly formed proteins and lipids. Endoplasmic reticulum, Golgi bodies, lysosomes, and a variety of vesicles are its componentsGolgi body Organelle of lipid assembly, polypeptide chain modification, and packaging of both in vesicles for export or for transport to locations in the cytoplasm. cytomembrane system [Gk. kytos, hollow vessel] Organelles, functioning as a system to modify, package, and distribute newly formed proteins and lipids. Endoplasmic reticulum, Golgi bodies, lysosomes, and a variety of vesicles are its components