What is Ribosome? Md. Saifur Rahman The organelle that lacks membrane around it helps in protein synthesis of animal and plant is called Ribosome.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?