The cytoplasm of all cells contains structures, limited to ribosomes on rough endoplasmic reticulum and vesicles.
The independent clause at the beginning makes sense, but it lost from "limited"... (and to think this is from my biology textbook).
Does it mean that the structures formed in cells are always limited to only having "...ribosomes..." (This can't be true based off of my existing biology knowledge). Or, does it mean that any structures can form except "...ribosomes..". Or, does it mean that the cytoplasm contains everything except "...ribosomes..."?
The context is just about cell organelles.