What are the building blocks of lipids called? type here

## Step 1<br />Lipids are a type of organic compound that are primarily composed of carbon, hydrogen, and oxygen atoms. They are a diverse group of compounds, including fats, oils, waxes, phospholipids, and steroids.<br /><br />## Step 2<br />The building blocks of lipids are called fatty acids. Fatty acids are carboxylic acids with a long aliphatic chain, which is either saturated or unsaturated.<br /><br />## Step 3<br />The structure of a fatty acid consists of a carboxyl group (-COOH) at one end and a methyl group (CH3) at the other end. The carbon chain in between can be either straight (saturated) or bent (unsaturated).<br /><br />## Step 4<br />The fatty acid chains can be attached to a glycerol backbone to form lipids. This attachment is done through a process called esterification, where the carboxyl group of the fatty acid reacts with the hydroxyl group of the glycerol.