We studied changes of chromospheric and photospheric line profiles in spectra of the 2N/M2 two-ribbon flare of 3 June 1979 at different stages of its evolution: 30 minutes before the flare, in the impulsive and gradual phases. We determined line profile parameters of seven Fraunhofer lines formed in different photospheric layers as well as of the lines H_α, D₁ and D₂ of Na I and D₃ of He I. The lines were weakened and broadened relative to the undisturbed atmosphere lines at all the flare evolution stages. The photospheric lines were blue-shifted with respect to their positions in an undisturbed photosphere spectrum, which is evidence of an upflow of photospheric masses. Before the flare, the action of the physical state change was stronger for the weak lines formed at heights below 200 km than for other lines. There was a considerable broadening of the majority of the lines at the beginning of the flare in its inner kernel near a filament. The photospheric lines were weakening and broadening during the gradual phase of the flare.