A basic tenet of present day biophysics is that flows in biological systems are causally related to forces. A large and growing fraction of membrane biophysics is devoted to an exploration of the quantitative relationship between forces and flows in order to understand both the nature of biological membranes and the processes that take place on and in these membranes. This is why the discussion of the nature of diffusion is so important in any formal development of membrane bio- physics. This was equally true twenty years ago when tracers were just beginning to be used for the measurement of...
A basic tenet of present day biophysics is that flows in biological systems are causally related to forces. A large and growing fraction of membrane b...