1. Lipids

2. What are lipids? Contains the element C, H and O
Lipid can be either fats, oils or waxes
The main biological functions of lipids include energy storage and as structural components of cell membranes (Phospholipid)
The ratio of H to O in lipids is 2:1

3. Function of lipid Store energy Biological membrane
Waterproof coverings
Hormone: steroid

4. Structure of Lipid
Each lipid is made up of small chemical sub-unit called Fatty Acids and Glycerol

5. Fatty Acids
Consist of a long chain of carbons with a carboxyl group at one end

6. Glycerol OH
C3H8O3

7. Saturated fats Most animal fats Limit the amount in your diet
solid at room temperature
Limit the amount in your diet
contributes to heart disease
deposits in arteries

8. Unsaturated fats Plant, vegetable & fish fats
liquid at room temperature
the fat molecules don’t stack tightly together
Better choice in your diet

9. Saturated vs. unsaturated

10. Lipid Synthesis

11. Lipid Synthesis

12. Lipids Synthesis
Glycerol and fatty acids can be chemically linked through a procedure which generates a water molecule
Therefore, lipids are synthesized by
_________________________

13. Lipids Break Down
If Lipids can be formed through Dehydration synthesis, then lipids can be broken by ________________________
Hydrolysis: The splitting of a molecule into two smaller molecules through the addition of water