Monosaccharides z Monosaccharides are categorized by the number of carbons (typically 3-8) and whether an aldehyde or ketone z Most abundant monosaccharides are hexoses (6 carbons) z Most monosaccharides are aldehydes, i.e. aldoses C C H O H OH C C O H H OH aldehyde ketoneMonosaccharides z Monosaccharides are categorized by the number of carbons (typically 3-8) and whether an aldehyde or ketone z Most abundant monosaccharides are hexoses (6 carbons) z Most monosaccharides are aldehydes, i.e. aldoses C C H O H OH C C O H H OH aldehyde ketone