Bioenergetics, the topic of volume 5 of this Series, is concerned with the energetics, the kinetics, and the mechanisms of energy conversion in biological systems. This phenomenon can be investigated on diffe- rent levels of complexity. On a global level the role of biological pro- cesses for the steady state of our enviroment is considered. At the physiological level, the relation between energy input and the physiolo- gical state of an organism is of interest, while at the cellular level the biochemical pathways for degradation and synthesis of all relevant substrates is investigated. At...