Describe what type of macromolecule lactose is and what the monomer of the macromolecule is

Some macromolecules are multiples of a repeating unit (monomer), they are called polymers. Carbohydrates, proteins, and lipids contain monomers. But, some macromolecules cannot be sub-divided into individual entities; some of those molecules have macrocycles. For example, fat is a macromolecule ...