Physics of bio molecules and cells. Physique des biomolécules et des cellules : Session LXXV. 2 27 July 2001 Aimed at those working to enter this rapidly developing field this volume on biological physics is written in a pe dagogical style by leading scientists giving explanations that take their starting point where any physicist can fol low and end at the frontier of research in biological phy sics. These lectures describe the state of the art physics of biomolecules and cells. In biological systems ranging from single biomolecules to entire cells and larger biological systems it focuses on aspects that require concepts and methods from physics for their analysis and understanding such as the mechanics of motor proteins; how the genetic code is physically read and managed; the machinery of protein DNA interactions; force spectroscopy of biomoleculesvelopes cytoskeletons and cytoplasms; polymerization forces; literia propulsion; cell motility; lab on a chip nanotechnology for single molecule analysis of biomolecules; bioinforma tics; and coding and computational strategies of the brain