1. Triglycerides Energy storage (fat)
Fatty acids building block for triglycerides / phospholipids / pre-cursor of eicosanoids
Triglycerides Energy storage (fat)
Phospholipids Major component of cell membranes
Cholesterol Component of cell membranes pre-cursor for bile acids precursor for steroid hormones
Phospholipid synthesis

2. Phospholipids are amphipathic
head group
Water soluble / hydrophillic
phosphate
glycerol O O O O
Water insoluble / hydrophobic
Phospholipid synthesis

3. There are different kinds of head group:
Phospholipid synthesis

4. Cholesterol Important constituent of membranes
Precursor of steroid hormomes
Precursor of bile acids.
Lipid transport

5. Phospholipid synthesis