1. Organic Compounds!! LIPIDS

2. What makes McDonald ’ s fries taste soooo good? ?

3. Lipids Are made of C, H, O Are made of C, H, O Have a much greater ratio than 2:1 of hydrogen to oxygen Have a much greater ratio than 2:1 of hydrogen to oxygen Found in cell membrane Found in cell membrane Store energy Store energy Fats: Fats: Solids Solids oils oils

4. Building Blocks of Lipids Three Fatty Acids and One Glycerol F.A. is a long hydrocarbon chain with a carboxyl group Glycerol has 3 carbons, 5 hydrogen, and 3 OH groups C3H5(OH)3

5. Let ’ s Practice! Dehydration Synthesis of Lipids : Dehydration Synthesis of Lipids : 1 glycerol + 3 fatty acids  lipid +3 water 1 glycerol + 3 fatty acids  lipid +3 water (remove water) (remove water) Hydrolysis: Hydrolysis: Lipid + 3 water  1 glycerol + 3 fatty acids Lipid + 3 water  1 glycerol + 3 fatty acids (add water) (add water)

6. Dehydration Synthesis of Lipids!

7. Hydrolysis of Lipids!

8. Cell Membrane Can you identify the lipids? Can you identify the lipids? Hydrophobic/hydrophilic Hydrophobic/hydrophilic

9. GUESS?? Can you identify what this is???

10. This is a typical fat! Can you locate the glycerol molecule and the 3 fatty acids, circle & label them! Can you locate the glycerol molecule and the 3 fatty acids, circle & label them!

11. Can you identify this? CH 2 (OH)CH(OH)CH 2 (OH) CH 2 (OH)CH(OH)CH 2 (OH)

12. Can you identify these?? Saturated : single bonds (from animal) Saturated : single bonds (from animal) Unsaturated : double bonds (from plants) Unsaturated : double bonds (from plants)

13. Review Can you identify the process ?