Ribosomes and ER
Ribosomes play a crucial role in protein synthesis by using RNA from the nucleus as a template. The endoplasmic reticulum, a complex network of membranes, assists in this process by providing an environment for proteins to fold and directing them to their destinations within the cell. There are two types of endoplasmic reticulum: rough, which is studded with ribosomes, and smooth, which has various functions including lipid synthesis and detoxification.In this clip
From this podcast

The Science of Everything Podcast
Episode 10: The Cell
Related Questions
What does the endoplasmic reticulum do?
Here's a riddle about the endoplasmic reticulum: I am a network of membranes, smooth or rough as can be, I help in the synthesis of proteins, and lipids, you see. I transport and fold, in the cell I'm a key, What am I, this organelle, essential for harmony?
Here's a riddle about ribosomes for you: I make the proteins that help you thrive, Floating in the cell, keeping life alive. With mRNA as my guide, I read the code, Building chains of amino acids in a precise mode. What am I? (Answer: Ribosome)