Molecular Models of Photoresponsiveness

and General Principles.- Evolutionary Aspects of Photoresponsive Systems.- Light Migration and Energy Utilization in Biological Systems.- The Biological Effects of Millimeter Waves.- Biological Photoresponses and Photoreceptors.- Photoresponsive Systems in Nature: UV Light.- Photoinduced Responses in UV-Irradiated Cells.- Photoregulation of E. Coli Growth and the near Ultraviolet Photochemistry of tRNA.- The Photoimmunology of Delayed-Type Hypersensitivity and Its Relationship to Photocarcinogenesis.- Photoresponsive Systems in Nature: Visible Light.- Photorepair Processes.- Reversible Absorbance Changes and Modulation of Biological Activities by Blue Light.- Proposed Mechanism for Photomodulation of Carbon Metabolism Enzyme Activity in Chloroplasts and Cyanobacteria.- Protein Phosphorylation as an Adaptive Mechanism in Photosynthesis and Vision.- Circadian Rhythms: The Basis for Information Processing in Eukaryotes during Adaptation to Seasonal Changes in Photo- and Thermoperiods.- Photocontrol of Enzyme Activity in Higher Plants ¿ Activation or Synthesis?.- Photomodulation of Enzymes.- Photoresponsive Model Systems.- Photochemical Processes Induced with Enzyme-Generated Triplet Species.- Conformational Models of Light Energy Utilization in Photoreceptive Systems.- Activity Modulation by Photochromic Effectors.- Photomechanical Effects in Photochromic Systems.- Photoresponsive Synthetic Polymers.- Spectroscopic Studies of Conformational Changes in Photochromic Polypeptides.- Photoresponsive Crown Ethers.- Model Photoresponsive Membranes.- Photoresponsiveness and Models: Contributions and General Discussion.