Polypeptides that are transported in vesicles are first made by
A) the Golgi apparatus.
B) ribosomes within the mitochondrion.
C) the smooth endoplasmic reticulum.
D) ribosomes on the rough endoplasmic reticulum.
E) ribosomes within chloroplasts.

Question

Quizplus · Accepted Answer

Polypeptides that are transported in vesicles are first made by ribosomes on the rough endoplasmic reticulum. These polypeptides undergo modifications and folding in the ER before being transported in vesicles to their final destination, which may be the Golgi apparatus or outside the cell.

Polypeptides That Are Transported in Vesicles Are First Made by