1. Lipids

2. Lipid Structure 3 1 2 Fats, Oils, Waxes
Energy for cells, cell structure, insulation
Lipids & Proteins compose the cell membrane
Cholesterol: gives cell membrane flexibility
Stucture (2 parts):
“Head” of glycerol
“Tail” of fatty acids molecules
Monomer: Fatty Acid
Polymer: Lipid 3 1 2

3. Saturated Fats Long chain of C-C bonds (all single bonds)
Each C is “saturated” with H atoms
Solid at room temps
Very common in animal fats

4. Unsaturated Fats Long chain of C-C bonds (some double bonds)
Unsaturated: Less space for H atoms
Liquid at room temps
Plant fats

5. Which has more H? 18 16