1. 5.3 Lipids are a diverse group of hydrophobic molecules

2. Fats
Not polymers
Glycerol plus fatty acids

3. Saturated vs unsaturated fatty acids

4. Hydrogenated fats

5. Health concerns

6. Function

7. Phospholipids

8. Steroids Carbon skeleton consisting of four rings
Ex) Cholesterol, many hormones

9. 5.4 Proteins have many structures, resulting in a wide range of functions
Greek word – proteios – meaning “first place”
See Table 5.1 p. 78 for an overview of protein functions

10. Polypeptides
20 amino acids
Protein = one or more polypeptides

11. Amino acid polymers