The formation of a disaccharide molecule from two monosaccharide molecules proceeds by displacing a hydroxyl radical from one molecule and a hydrogen nucleus ( a proton ) from the other .
The now vacant bonds on the monosaccharides join the two monomers together .
The formation of a disaccharide molecule from two monosaccharide molecules proceeds by displacing a hydroxyl radical from one molecule and a hydrogen nucleus ( a proton ) from the other , so that the now vacant bonds on the monosaccharides join the two monomers together .