Structure Stacks of cisternae Associated with membrane bound vesicles Two faces cis receiving face from the ER input to the Golgi convex shape trans exports away from Golgi location of trans-Golgi network faces plasma membrane concave shape Function Post-translational peptide modification addition of N-oligosaccharides on asparagine (amino-group) O-oligosaccharides on serine and threonine (hydroxyl-group) mannose-6-phosphate login to view 3 more bullets sulfation of tyrosines cleavage of propeptides peptidase cleaves proinsulin to insulin + C-peptide login to view 2 more bullets Packaging/distribution of proteins and lipids received from ER (adds amino acid residues that golgi later modifies) via coat protein complex (COP) II login to view 5 more bullets leaves Golgi headed towards several destinations plasma membrane lysosomes secretory vesicles mediated by clathrin Proteoglycan assembly sulfation of sugars