Macromolecular compounds: Macromolecular compounds refer to those compounds with a relative molecular weight greater than 10000, which are composed of many atoms or atomic groups mainly bonded by valence bonds. Polymers are usually composed of 103 ~ 105 atoms connected by valence bonds. Because polymers are mostly polymerized by small molecules, they are often called polymers or high polymers, and the small molecules used for polymerization are called "monomers".

Such as cellulose, protein, silk, rubber, starch and other natural polymer compounds, as well as polymer-based synthetic materials such as various plastics, synthetic rubber, synthetic fibers, paints and adhesives.

Glucose is not a polymer compound, but a monomer of polysaccharide. RNA and DNA are both polymer compounds.