Photosynthetic processes are among the most elementary mechanisms in nature and the basis for the existence of living organisms on earth. As a result of intense studies it appears that the sophisticated processes of photosynthesis can be expressed as an interplay of a few types of molecular complexes with individual properties. The complexes which are highly involved in the light reaction mechanisms can be characterized by so called light-harvesting antenna complexes, such as the light-harvesting-complexes one and two (LHI and LHII), the reaction center which converts the optical excitation...