What are in a biomolecule web

The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins. They are built from four types of sugar units-monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Lipids, another key biomolecule of living organisms, fulfill a variety of roles, including serving as a source of stored energy and acting as chemical messengers.