Macromolecules Biological Macromolecule Elements Ratio Function Monomer - Short term energy storage Carbohydrate -ose CHO 1:2:1 - Structure (cell walls & exoskeletons) Examples -Glycogen Monosaccharide -Chitin -Cellulose -Glucose fructose galactose -sucrose lactose maltose Lipids CHO 1:2:very few Proteins CHON No ratio CHONP No ratio Nucleic Acids Functional Group(s) -OH