Rough ER
ER membranę Phagosom?
Pla3rra
rremtrane
(?) Protein-ccntaininq vesicles pinch off rough ER and migratc to fuse with memtranes or uoigi apparatus.
(i) Proteinę 3re modilied within the Goigi comparimerts.
(3) Proteins are then
packaged within dfferent \esicle types. depending ontneir utimate destinaticn.
Guły i-
aoparatus
Pathway A:
V5siclc contcrts destired for exocytosis
Proteins in cisterna
Pathway C:
Lysosomc
containinę
enzymes^see
Vesicle becones Lysosorre (see n
Secretory
vesicie
Pathway B:
Vesicle rremtrane be incorporatec inlo plasma nemorane
Secretion Łyexocyto
Extrace!lular fluid