What are carbohydrates considered?

They are classified into monosaccharides, disaccharides, and polysaccharides. A monosaccharide has a carbonyl group, multiple hydroxls, can be calssified by its size of carbon skeleton, may exist as enantiomers, and is a major source of energy for cellular work. Disaccharides are formed by dehydration and poly saccharides can be considered as a storage function.