The Golgi apparatus, also known as the Golgi complex, is an organelle found in most eukaryotic cells that was discovered in 1897 by Italian physician Camillo Golgi. It has a flattened stack of membranes with a cis face on one end that receives vesicles from the endoplasmic reticulum and a trans face on the other end that sends out vesicles. The Golgi apparatus packages and modifies proteins and lipids from the endoplasmic reticulum and transports them within the cell or secretes them out of the cell, functioning similarly to a post office.
2. The Golgi apparatus
Golgi apparatus
Golgi apparatus
Golgi apparatus, also
known as the Golgi complex
Golgi complex
Golgi complex
Golgi complex,
Golgi body
Golgi body
Golgi body
Golgi body, or simply the
Golgi
Golgi
Golgi
Golgi, is an organelle found
in most eukaryotic cells.
4. Golgi was identified in
1897 by the Italian
physician Camillo Golgi.
This cell organelle was
named after him in 1898.
5. The Golgi structure
1. Is a smooth, curvy structure.
2. Has a flattened stack of membranes.
3. Has a front end and a back end.
4. The front end is called the cis face
cis face
cis face
cis face and
the back end is called the trans face
trans face
trans face
trans face.
8. Functions:
Functions:
Functions:
Functions:
The basic function of the Golgi apparatus is the
transport of proteins within the cell.
The Golgi receives materials for transportation
through the cis face
cis face
cis face
cis face and sends the materials
through to the trans face
trans face
trans face
trans face once they are packaged
and modified into the vesicles.
It functions in the collection, packaging, and
distribution of material.
9. Cisternae are the
flattened membrane folds
of the Golgi apparatus that push
together, pinching off secretory
vesicles containing molecules;
which are then discharged into
the cell.
10. Golgi apparatus is a major collection
and dispatch station of protein products
received from the endoplasmic
reticulum (ER).
Proteins synthesized in the ER are
packaged into vesicles, which then fuse
with the Golgi apparatus.
11. These cargo proteins are
modified and destined for
secretion via exocytosis or for
use in the cell.
12. In this respect, the Golgi can be
thought of as similar to a post
office: it packages and labels items
which it then sends to different
parts of the cell or to the
extracellular space.
The Golgi apparatus is also
involved in lipid transport and
lysosome formation.
13. Vesicular transport
Vesicular transport
Vesicular transport
Vesicular transport
The vesicles that leave the rough ER are
transported to the cis face of the Golgi
apparatus, where they fuse with the Golgi
membrane and empty their contents into
the lumen.
Once inside the lumen, the molecules are
modified, then sorted for transport to their
next destinations.