In what cellular organelle are proteins synthesized?

Question

Quizplus · Accepted Answer

Proteins are synthesized in ribosomes, which can be either free in the cytoplasm or attached to the endoplasmic reticulum. The nucleus contains DNA and is responsible for regulating gene expression, but protein synthesis occurs outside of the nucleus. The cell membrane is responsible for controlling the movement of molecules in and out of the cell, but it does not play a role in protein synthesis. Mitochondria are responsible for energy production, but they do not synthesize proteins.

In What Cellular Organelle Are Proteins Synthesized