[Possible study of period turnover in the solutions of biological systems using the optical displacement method]

The spectrum of light scattered by particle solution with periodically changing properties is under discussion. Besides the central line the displaced ones are shown to appear. Both the central and displaced lines are broadened due to the diffusion movement of particles. Experimental conditions necessary for the resolution of these lines are found. Solution of functioning ribosomes is selected as a model. The results can be nevertheless also applied to other similar systems.