And that's exactly why we call it the smooth Er. Now, since it doesn't contain any ribosomes inside our membrane, that means the smooth Er is not directly involved in synthesizing our proteins. However, it does contain some very important enzymes that are basically involved in creating glucose. And this enzyme that I'm talking about is known as glucose six phosphatase. So glucose six phosphatase is an enzyme that is important in the generation of glucose. But perhaps the most important or one of the most important functions of the smooth endoplasmic reticulum is the synthesis of different types of lipids.