Monosaccharides CHO CH,OH CHOH 2C=0 CHOH CHOH CHO CH,OH CHOH CHOH CHOH 2C=0 SCHOH SCHOH CHOH CHOH CH,OH CH,OH CH,OH CH,OH an aldohexose a ketohexose an aldotetrose a ketotetrose Copyright 2010 Pearson Prentice Hall,Inc. Classified using three criteria: If it contains a ketone or an aldehyde group. Number of carbons in the chain. Configuration of the asymmetric carbon farthest from the carbonyl group. Chapter 23 4Chapter 23 4 Monosaccharides ▪ Classified using three criteria: ▪ If it contains a ketone or an aldehyde group. ▪ Number of carbons in the chain. ▪ Configuration of the asymmetric carbon farthest from the carbonyl group