Amylose is the simplest form of starch. Amylopectin is more complex and is branched. Cellulose is the most abundant organic compound on earth. It is made of glucose, like starch, but differs in the type covalent bonds. They are hydrophobic.
Some important groups are fats, phospholipids, and steroids.
Unsaturated fatty acids contain one or more double bonds between their carbons. This causes the molecule to bend or kink at each of the double bond sites. Unsaturated 1. solid at room temperature 1. liquid at room temperature 2. found mostly in animals 2. found mostly in plants 3. These molecules are found making up the plasma membrane of cells. They exhibit a polar and non polar quality.