Question

which organelle is responsible for protein synthesis in all three cell types? lysosome ribosomes endoplasmic reticulum golgi apparatus

Explanation:

Lysosomes are for digestion, endoplasmic reticulum (rough ER) and Golgi apparatus are involved in protein processing (but not the initial synthesis for all cell types). Ribosomes are the site of protein synthesis in all cell types (prokaryotic and eukaryotic - animal, plant etc.).

Answer:

Ribosomes