Which cell organelle is responsible for protein synthesis?ARibosomesBLysosomesCGolgi apparatusDEndoplasmic reticulumAnswer: A. Ribosomes Read Explanation: Ribosomes, large complexes of protein and ribonucleic acid (RNA), are the cellular organelles responsible for protein synthesis. They receive their “orders” for protein synthesis from the nucleus where the DNA is transcribed into messenger RNA (mRNA). Read more in App