The five steps of protein making process are:

1. Proteins are assembled at ribosomes.
2. Proteins targeted for export to the cell membrane, or to specialized locations within the cell, complete their assembly on ribosomes bound to the rough endoplasmic reticulum.
3. Newly assembled proteins are carried from the rough endoplasmic reticulum to the Golgi apparatus in vesicles.
4. The Golgi apparatus further modifies proteins before sorting and packaging them in membrane-bound vesicles.
5. Vesicles from the Golgi apparatus are shipped to their final destination in, or out of, the cell.