Multiple Ring Structures Background Information 1. Organic chemists use many shortcuts in drawing complex molecules. They often do not include the letter C for carbon , for example. Cholesterol , shown below, is a steroid . Steroids are one type of molecule in the class of compounds known as lipids .
Cholesterol plays an important role in membrane formation.
The bonds between the carbons are shown. In one ring there are two carbon atoms connected by a double bond. Draw an arrow to point at the double bond in the drawing. To further simplify this drawing, none of the hydrogen atoms have been drawn. However, since you know that each carbon atom forms four bonds, you can fill in all the missing hydrogen atoms.