Carbohydrates are biomolecules with the chemical formula Cm(H2O)n. Carbohydrates in nature can be classified into several basic groups:
- Sugars which are short-chain, often sweet carbohydrates. For examples include: monosaccharides like glucose and fructose and disaccharides like sucrose (table sugar).
- Oligosaccharides like those found in legumes.
- Polysaccharides which are long-chain carbohydrates composed of several individual subunits (monosaccharides), notable examples include cellulose, starch, glycogen, etc.
The suffix -saccharide is used to refer to carbohydrates, especially groups of carbohydrates.