Here's a breakdown:

* Macromolecules: Large complex molecules that are essential for life. They are formed by the joining of smaller subunits.

* Monomers: The small, repeating units that make up macromolecules.

Examples:

* Carbohydrates: Monomers are monosaccharides (e.g., glucose, fructose).

* Proteins: Monomers are amino acids.

* Nucleic acids (DNA & RNA): Monomers are nucleotides.

* Lipids (fats & oils): While lipids are not strictly polymers like the others, they are made up of fatty acids and glycerol.

Let me know if you'd like more details about specific macromolecules and their monomers!