Molecular stereospecific recognition and reduction in cell biology -- Mathematical prelude : elementary set and probability theory -- Biological networks -- Information and communication in living systems -- Statistical mechanics of network information, integration and emergence -- On the mechanistic causes of network information, integration and emergence -- Information and organization of metabolic networks -- Functional connections in multienzyme complexes : information, and generalized microscopic reversibility -- Conformation changes and information flow in protein edifices -- Gene networks -- Stochastic fluctuations and network dynamics.