Cosmochemical Evolution and the Origins of Life: Proceedings of the Fourth International Conference on the Origin of Life and the First Meeting of the International Society for the Study of the Origin of Life, Barcelona, June 25–28, 1973 Volume II: Contributed Papers

Front Matter....Pages I-VII
Front Matter....Pages 1-1
Amino Acids in Carbonaceous Chondrites....Pages 3-8
Remarks on the Chemical Conditions on the Surface of the Primitive Earth and the Probability of the Evolution of Life....Pages 9-13
Molten Earth and the Origin of Prebiological Molecules....Pages 15-21
Soil and Water and Its Relationship to the Origin of Life....Pages 23-36
Microbial Contributions to the Evolution of the ‘Steady State’ Carbon Dioxide System....Pages 37-44
Structures of Biogenic Origin from Early Precambrian Rocks of Euro-Asia....Pages 45-57
Front Matter....Pages 59-59
Photochemical Synthesis of Simple Organic Free Radicals on Simulated Planetary Surfaces - an ESR Study....Pages 61-73
High Frequency Discharge Experiment....Pages 75-81
Formation of Prebiochemical Compounds in Models of the Primitive Earth’s Atmosphere....Pages 83-90
Formation of Prebiochemical Compounds in Models of the Primitive Earth’s Atmosphere....Pages 91-97
Organic Synthesis by Quench Reactions....Pages 99-107
Shock Synthesis of Amino Acids II....Pages 109-115
Quantum Chemical Study of the Thermodynamics, Kinetics of Formation and Bonding of H 2 CN: Relevance to Prebiotic Chemistry....Pages 117-125
Aminonitriles: Possible Role in Chemical Evolution....Pages 127-136
Front Matter....Pages 137-137
Macromolecules and the Origin of Life....Pages 139-146
NMR Studies of Prebiotic Polypeptides....Pages 147-153
The Origin of Proteins: Heteropolypeptides from Hydrogen Cyanide and Water....Pages 155-162
Prebiotic Nucleotide Synthesis-Demonstration of a Geologically Plausible Pathway....Pages 163-168
Models of Prebiological Phosphorylation....Pages 169-174
Conditions of Occurrence for Primeval Processes of Transphosphorylations....Pages 175-183
Front Matter....Pages 185-185
Experiments on the Origins of Optical Activity....Pages 187-194
A Technique for the Determination of Enantiomeric Amino Acids in Biological Samples....Pages 195-202
Coacervate-Like Microspheres from Lysine-Rich Proteinoid....Pages 203-209
Evolution in Bioids: Hypercompetitivity as a Source of Bistability and a Possible Role of Metal Complexes as Prenucleoprotic Mediators of Molecular Asymmetry....Pages 211-218
Entropy of the Genetic Information and Evolution....Pages 219-227
Physical Foundations of the Probability of Biogenesis....Pages 229-237
Some Physical Parameters Controlling Cell Size During the Evolution of the Procaryons....Pages 239-243
Front Matter....Pages 245-245
The Beginning of Photosynthesis....Pages 247-251
Evolution of Photosystems of Photosynthetic Organisms....Pages 253-256
Evolution of Oxygen by Plants in Relation to Biosphere Evolution....Pages 257-263
Ambiguity in the Interpretation of Abiotic Syntheses....Pages 265-267
On the Question of the Origin and Evolution of the Genetic System....Pages 269-271
A Model for the Coevolution of the Genetic Code and the Process of Protein Synthesis: Review and Assessment....Pages 273-283
Front Matter....Pages 285-285
Hot Hydrogen Atoms: Initiators of Reactions of Interest in Interstellar Chemistry and Evolution....Pages 287-293
Role of Weak Bases on the Prebiotic Formation of Heterocyclic Compounds....Pages 295-299
The Prebiotic Synthesis of Deoxythymidine Oligonucleotides....Pages 301-308
A Possible Step in the Origin of the Genetic Code....Pages 309-314
The Emergence of Carcinogens During the Evolution of Living Systems....Pages 315-323
Back Matter....Pages 325-334