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This book is aimed at a large audience: from students, who have a
high- school background in physics, mathematics, chemistry, and
biology, to scien- tists working in the fields of biophysics and
biochemistry. The main aim of this book is to attempt to describe,
in terms of physical chemistry and chemi- cal physics, the peculiar
features of "machines" having molecular dimen- sions which play a
crucial role in the most important biological processes, viz. ,
energy transduction and enzyme catalysis. One of the purposes of
this book is to analyze the physical background of the high
efficiency of molecu- lar machines functioning in the living cell.
This book begins with a brief review of the subject (Chapter 1).
Macro- molecular energy-transducing complexes operate with thermal,
chemical, and mechanical energy, therefore the appropriate
framework to discuss the functioning of biopolymers comes from
thermodynamics and chemical kinet- ics. That is why we start our
analysis with a consideration of the conventional approaches of
thermodynamics and classical chemical kinetics, and their
application to the description of bioenergetic processes (Chapter
2). Critical analysis of these approaches has led us to the
conclusion that the conven- tional approaches of physical chemistry
to the description of the functioning of individual macromolecular
devices, in many cases, appear to be incom- plete. This prompted us
to consider the general principles ofliving machinery from another
point of view.
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