o
A protein secreting
cell is metabolically very active
o
It receives signals via
G protein coupled receptors.
o
It has a prominent
nucleus which takes a large space of the cell. (Transcription, translation
occurs in it.)
o
RER supports in
synthesis of protein. So it is prominent in the cell. (RER has ribosome on its
surface which involve in polypeptide synthesis using amino acids)
o
More mRNA, tRNA &
rRNA make cytoplasm basophilic.
o
From RER synthesized
polypeptides sent to Golgi apparatus for further modifications via vesicles. So
large number of vesicles can be seen.
o
Well developed Golgi
apparatus can be seen for post translational modifications of synthesized
polypeptides.
o After that finished proteins exit from the cells by a secretory vesicles made out of Golgi apparatus, so large number of secretory vesicles can be seen.
