Smooth And Rough E.Rs Belong with Me

Once again Lexie presents us with her singing videos. She sang about the Rough E.R and Smooth. If you wants to sing along: eukaryotic cells contain internal membrane systems known as the endoplasmic reticulum but you can just call it the ER the one I am talkin’ about is the rough E.R. its called this because ribosomes are on its surface and now you know why its called the right E.R.