PHYSICAL CHEMISTRY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site zwitterion An electrically neutral ion carrying both a positive and a negative charge in different parts (owing to both an acidic and a basic functional group being present). For example, the amino acid glycine exists in solution at the isoelectric point as the zwitterion +H3N·CH2·COO-. Related category    • PHYSICAL CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP