3.1 Biological molecules

3.1.1 Monomers and polymers

3.1.2 Carbohydrates

3.1.2 Mono and  disaccharides

3.1.2  Polysaccharides

3.1.3 Lipids

3.1.4 Proteins

3.1.4.1 General properties of proteins

3.1.4.2 Many proteins are enzymes

3.1.5 Nucleic acids

3.1.5.1 Structure of DNA and RNA

3.1.5.2 DNA replication

3.1.6 ATP

3.1.7 Water

3.1.8 Inorganic ions