carboxyl group (-COOH) The -COOH functional group, found in all carboxylic acids and amino acids. It consists of a carbon atom joined by covalent bonds to two oxygen atoms, one of which in turn is covalently bonded to a hydrogen atom. One valence electron on the carbon is available for bonding to another atom so that the carboxyl group can form part of a larger molecule. A carboxyl group is a carbonyl group attached to a hydroxyl group. Related category • ORGANIC CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |