Answer:
Ribosomes are produced inside the nucleus, by the nucleus, then leave the nucleus through nuclear pores
Some ribosomes attach to ER whereas others move freely in cytoplasm
Ribosomes use mRNA to make proteins
Ribosomes synthesis proteins that are then placed in vesicles (sacs)
Proteins then move to the golgi apparatus where they get folded and carbohydrates and lipids attached to them
Fully active proteins leave the cell through cell membrane
