And all the proteins basically collect inside our Golgi apparatus. And what the Golgi apparatus does is it basically organizes, it modifies, and it ships out all those proteins into the different parts of the cell, as well as the cell membrane and outside the cell. So basically, one thing that I forgot to mention about the ruff Er is the proteins synthesized in the ribosomes of the ruff Er are the proteins that eventually either end up in our cell membrane or they end up leaving the cell entirely. And that means inside our ribosome, inside our ruff Er, when we synthesize the proteins, we also add a special type of signal known as the signal sequence, or the peptide sequence onto the protein. And that sequence basically signifies the fact that the protein's destination is either in the cell membrane or it's outside the cell. And when the protein ends up in our Golgi apparatus, that sequence is modified.