Carbohydrates
- 17 kJ of energy per gram
- Disaccharides = highly soluble. Polysaccharides = insoluble
- Less metabolic water produced
- Stored as STARCH in plants and GLYCOGEN in animals
- Monomer = Glucose
- SHORT TERM energy store
Lipids
- 38kJ of energy per gram
- Insoluble
- A lot of water produced on oxidation
- Monomers = Fatty Acids and Glycerol
- LONG TERM energy store