It leaves the Golgi apparatus inside a vesicle. And the reason it stays inside the vesicle is to protect the structure of our protein. So that vesicle can then basically go onto the membrane, and the protein can either remain in the membrane of the cell or it can secrete itself outside that cell. Now, we also have ribosomes that aren't actually attached to the membrane of our endoplasmic reticulum. And these ribosomes are known as free ribosomes. They are shown in this region.