Key words:
Polymers - a substance made up of similar smaller molecules linking together through a process called covalent bonds to form a bigger molecule, e.g. carbohydrates, lipids, protein. Chains of monomers.
Monomers - the smaller molecule/a molecule that can bond with other identical molecules to form a polymer, the building blocks, e.g. glucose, amino acids, fatty acids.
Macromolecules: A macromolecule is simply a very big molecule. Most biological macromolecules are polymers.
