Question

question 12
where are proteins made in a cell?
nucleus
ribosomes
mitochondria
cell membrane

Explanation:

Ribosomes are the sites of protein - synthesis in a cell. The nucleus contains DNA and is involved in genetic information storage and transcription, mitochondria are the power - houses of the cell for energy production, and the cell membrane is involved in cell - to - cell communication and protection.

Answer:

B. ribosomes