In eukaryotes, polypeptide synthesis occurs in
A) the nucleolus, where synthesis of ribosomal RNA occurs.
B) the cytosol, either free or in association with the outside surface of the rough endoplasmic reticulum.
C) the lumen of the endoplasmic reticulum, either free or in association with the inside surface of the rough endoplasmic reticulum.
D) association with the outside surface of the smooth endoplasmic reticulum.
E) the mitochondria cytosol in association with the Golgi cis-membrane.

Question

Quizplus · Accepted Answer

Polypeptide synthesis in eukaryotes primarily occurs in the cytosol, either on free ribosomes or on ribosomes attached to the rough endoplasmic reticulum (RER), not on the smooth ER, inside the lumen of the ER, in the nucleolus, or in association with the Golgi apparatus.

In Eukaryotes, Polypeptide Synthesis Occurs in