The Golgi apparatus is a major player in protein transport, but not the only one.

* Proteins are synthesized by ribosomes.

* Some proteins are destined for the cell membrane, lysosomes, or secretion outside the cell. These proteins are tagged with special signals during synthesis.

* The Golgi apparatus receives these proteins from the endoplasmic reticulum (ER). It acts as a sorting and processing center.

* Within the Golgi, proteins are further modified:

* They may be glycosylated (have sugar groups added).

* They may be folded into their correct 3D shapes.

* They may be sorted into different compartments.

* Finally, the Golgi packages proteins into vesicles (small membrane-bound sacs) for transport to their final destinations.

So, the Golgi does not directly transport proteins, but it plays a crucial role in their processing, sorting, and packaging for transport.