Question

structures of the cell quick check
in which part of the cell do ribosomes perform protein synthesis? (1 point)
○ cytoplasm
○ vacuole
○ nucleus
○ lysosome

Explanation:

To solve this, we analyze each option:

• Cytoplasm: Ribosomes (either free in cytoplasm or bound to ER) synthesize proteins in the cytoplasm.
• Vacuole: Stores substances, not involved in protein synthesis.
• Nucleus: Contains genetic material, not the site of protein synthesis (though DNA is transcribed here).
• Lysosome: Digests waste, not for protein synthesis.

So ribosomes perform protein synthesis in the cytoplasm.

Answer:

A. cytoplasm