what does ribosomes do?
Ribosomes are organelles that synthesize proteins for the cell and send protein to the nucleus. Ribosomes can be free floating in the cytoplasm, or can be attached to the oute â¦ r surfaces of the rough endoplasmic reticulum and are known as bound ribosomes.They use amino acids to create the protein when the nucleus sends out messenger RNA to tell the ribosomes to make the protein.ibosomes can be free floating in the cytoplasm, or can be attached to the oute â¦ r surfaces of the rough endoplasmic reticulum and are known as bound ribosomes. They use amino acids to create the protein when the nucleus sends out messenger RNA to tell the ribosomes to make the protein.