1987 年 27 巻 4 号 p. a159-a164
Biological system is consisted of various kinds and states of flow processes of energy, i.e. powers. If a system is able to be subdivided into representable power processes of free energy changes, dissipations and transductions, it is reconstructed as a circuit model by network thermodynamics. Membrane transport system is a typical example which can be synthesized as a model with the modules represented by generalized capacitors, resistors and transformer type transducers. The coupling mechanism in the membrane transport system is well interpreted with the circuit model.