Answer:
the endoplasmic reticulum by producing ribosomes for the rough side of the structure
Step-by-step explanation:
Rough endoplasmic reticulum have dense globular particles attached on the outer surface called ribosomes. They isolate and transport the synthesized protein to other parts of the cell. When a protein is made in the rough ER a transition vesicle floats through the cytoplasm to the Golgi apparatus and is absorbed. The golgi apparatus is involved in the packaging of synthesized cellular materials in secretory vesicle and releasing them into the cytoplasm. The vesicle then moves to the cell membrane and the cellular materials are released out of the cell.