Lipids

Carbon

Hydrogen

Oxygen

Storage

Non Polar so Insoluble

High energy store

When oxidised can produce same energy as carbohydrate

Thermal Insulation

Conducts Heat slowly

Waterproofing

Waxy Cuticles

Hormone Production

Made of 3 Fatty Acids attached to a Glycerol

Fatty acids join with Glycerol

Condensation

Produces an Ester bond.

Fatty acids are Chain of Carbon atoms

Carboxyl group attached

If Fatty acid has single bonds its Saturated

If Fatyy acid has double bonds its Unsaturated

2 Fatty Acids + Phosphate molecule attached to Glycerol

Hydrophillic Head

Phosphate soluble in water

Hydrophobic Tails

Fatty acid insoluble in water

Forms a bilayer