monosaccharides Simple sugars. They are classified by the number of carbon atoms in each of their molecules: trioses (3), tetroses (4), pentoses (5), hexoses (6), and so on. Monosaccharides combine to form more complex sugars known as oligo- and polysaccharides. Related category • BIOCHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |