A mathematical model is Proposed for describing the kinetics of change
s in the state of C40-carotinoids under rhytmic excitation of the nerv
e and changes of the membrane potential. The model includes cooperativ
e and Koulon interactions of carotinoid molecules with Na+, K+, Ca2+,
H+. Changes in the state of the carotinoid molecule after rhythmic exc
itation may be described by the restoration of the membrane potential
and functioning of electrogenic Na+, K+-ATPase.