1. Fats (an example of a lipid) Glycerol – Has three –OH groups – Polar molecule Soluble in water Fatty Acids – Long chains of hydrocarbons Insoluble in water – 16 to 18 carbons – Has carboxylic acid group at end of chain – Can be: Saturated: single bonds Unsaturated: double bonds (melt at lower temperature)

2. Dehydration Synthesis and Hydrolysis

3. How are phospholipids arranged? Q: How does phospholipid arrangement influence the function? A: It plays a role in cell membrane chemistry

4. A steroid is a type of lipid molecule that has four fused carbon ring structures Differences amongst steroids occur by different functional groups attached to carbon rings – Precursor: Cholesterol Steroids

5. Testosterone Estrogen Other Types of Steroids

6. Compare and contrast the structure of oils and waxes.