i said it was the RER itself, now you're making me doubt my answer It's most definitely rER because the source of the picture was /RoughER.gif It was golgi. The organelle was near a mitochondria, not near the nucleus. That's why it was so deceptive. Ribosomes were embedded on its surface. I found electron microscope images like this with rER located just next to mitochondria so it doesn't matter really if it's near nucleus or not. lol, link doesn't work. anyhow, here's a golgi body with dots on it: https://www.biochem.wisc.edu/faculty/bednarek/lab/images/mvb_golgi250.jpg plus, i don't think the IB would be dumb enough to put the answer in the source of the question. they have done that in the past!