The free energy of hydrolysis of an ((1(4) glycosidic bond is - 15.5 kJ ( mol-1, whereas that of an ((1(6) glycosidic bond is -7.1 kJ ( mol-1. Use these data to explain why glycogen debranching includes three reactions [breaking and reforming ((1(4) bonds and hydrolyzing ((1(6) bonds], whereas glycogen branching requires only two reactions [breaking ((1(4) bonds and forming ( (1(6) bonds].