2nd Edition . - M. : MSU, 1998. - 464 s. The textbook is based on the program of the general course of biophysics for students of biological faculties of state universities . The wide development of biophysics and its penetration into various related fields of biology and medicine became possible mainly due to the formation of its own theoretical base in biophysics. It is on this uniform basis that general biophysics courses are taught at various biological, medical, physical and agricultural universities. This textbook focuses mainly on the training of experimental biologists. Therefore, the focus is on the results obtained by biophysics in solving relevant biological problems. However, the presentation of general theoretical provisions is quite universal and can be useful to a wide range of different specialists. The second book discusses the basics of biophysics of cellular processes occurring in the cells of the body. It presents data on the structural and functional organization of biological membranes: describes the molecular organization and conformational properties of biological membranes. A special section of the textbook is devoted to the biophysics of the processes of transport of substances through biomembranes and bioelectrogenesis; it contains data on the transport of non-electrolytes, ion equilibria, ion transport in channels and induced ion transport. Electrodiffusion theory of ion transport across membranes, active transport and transport of ions in excitable membranes. The book presents ideas about electron transfer and energy transformation in biomembranes, biophysics of contractile systems, and reception processes. Detailed material on the biophysics of photobiological processes. The primary processes of photosynthesis and other biological processes in biological systems are described: energy transformation and electron-conformation interactions in primary processes of photosynthesis ; photochemical reactions of bacteriorhodopsin and rhodopsin ; photoregulatory and photodestructive processes.