Which structure is the site of the synthesis of proteins destined for export from the cell?
A)smooth ER
B)lysosomes
C)rough ER
D)Golgi vesicles
E)free cytoplasmic ribosomes

Question

Quizplus · Accepted Answer

Proteins destined for export from the cell are synthesized by ribosomes attached to the rough endoplasmic reticulum (ER), which is studded with ribosomes. The rough ER is involved in protein synthesis and modification, and proteins synthesized on the rough ER are often modified, folded, and transported to other cell locations, such as the Golgi apparatus, for further processing and eventual export from the cell.

Which Structure Is the Site of the Synthesis of Proteins