Please answer the following question: Fact 1: Ribosomes are sites where proteins are made. Fact 2: Endoplasmic reticulum are membranes attached to ribosomes. Given the two facts above, answer the question "What are membranes attached to sites where proteins are made?" with the following options: - the body's largest organ - Veins and arteries. - epidermis and dermis - layers of fat - cell walls - cell membranes - endoplasmic reticulum - brain cells
Answer:
endoplasmic reticulum