We report effects of oscillatory and steady shear flows on intermolecular associations and gelation in a semidilute aqueous solution of pectin in the absence and presence of a hydrogen bond breaking agent (urea). The effect of urea on the growth of intermolecular complexes stabilized through hydrogen bonds is analyzed. It is shown that when the systems are exposed to high shear rates, prominent intermolecular associative junctions emerge upon return to low shear rates.