494 



INDEX 



Phosphorus compounds, inorganic, 



205-6, 209 

 Photoautotrophs 

 evolution, 442-5, 449 

 metabolism, 162, 263, 445-8, 455-64 

 not primitive, 111, 406-7 

 Photosynthesis (cf. Photoauto- 

 trophs) 

 effect on atmosphere, 156-9, 446- 



50, 463 



production of organic com- 

 pounds, 109-13, 130, 156-9 

 Planets, 51-3, 56, 59-60, 69 



carbon compounds on, 117-22, 125 



origin of, 131-4, 136-42 

 Plasteins, 266 

 Plastids, 269, 272 

 Plato, 4-5 

 Plotinus, 8 



Polarised light, 185, 194-5 

 Polymerisation of 



acetaldehyde, 177 



amino acids, 211-3, 216, 266 



formaldehyde, 163, 198, 211 



glycolic aldehyde, 164 



hydrocarbons, 67, 119, 16970, 

 174, 176, 182-3 



hydrocyanic acid, 213 



mercaptans, 184 



nitriles, 213-5 



other organic compounds, 97, 

 153, 163, 177, 180, 186, 216, 266 

 Polynucleotides, 100, 203, 209, 288, 



302. 341 

 Polypeptides 



abiogenesis, 96, 208-17, 302 



structure, 231, 236, 241-2, 245 

 Porphyrins 



abiogenesis, 189, 201-2 



biosynthesis, 201-2, 334, 361, 391-2 



in enzymes, 372, 439, 441 



in petroleum, 111 



as photosensitisers, 439, 443-6 

 Pouchet, F., 26-8, 37, 44 

 Prokopovich, Theofan, 11-2 

 Proteins 



amino acid composition and 

 sequence, 232-52 



biosynthesis, 86, 259-90, 360, 391-2, 



399. 413 

 in coacervates, 305-11 



conjugated, 237, 245-7 

 denaturation, 67-8, 254-5, 378 



Proteins — cont. 



'living' and 'dead', 82-4 



meaning of word, 229-33, 348-9 



three-dimensional structure, 252- 

 60 



X-protein of tobacco mosaic virus, 

 276-7, 279 

 Protoplasm 



asymmetry in, 196 



destruction by radiation, 67-8 



models of, 88-91 



organisation, 37, 317-23, 331-2, 379 



origin, 74, 85-6, 97 



proteins of, 68, 82-4 



structure, 76, 87-9, 231, 311-21 



use of term, 230-1 



vitrification, 61 

 Purine and pyrimidine bases 



in nucleotides, 279-80, 282-3, 401 



synthesis, 203-5, 216 



Radioactivity, 79, 81-2, 94, 155-6, 

 165-6, 168-9, 174-5, 333 



Redi, 17, 37 



Respiration 

 a co-ordinated process, 364-5, 377-8 

 glycolytic systems in, 114, 467-70 

 integration in metabolism, 386, 



400, 420, 422 

 ontogenesis, 436 

 origin, 464-76 

 oxidative mechanisms in, 470-5 



Schafer, E. A., 92-4 

 Schelling, P., 24 

 Schorlemmer, C, 108, 230 

 Schroder, H., 26, 28-9 

 Schulze, F., 25-6 

 Schwann, T., 25, 29 

 Self reproduction of 



living systems, 338-9, 350, 360, 362 



molecules, 97-9, 389 



'moleculobionts', 96-7 



nucleic acids, 284-9 



nucleoproteins, 217, 232 



proteins, 231-2, 259, 261-3, 278 



viruses, 274 



X-protein, 276 

 Solar radiation {cf. Ultraviolet 

 radiations), 161-2, 180, 197, 438 



in metabolism, 438, 442-3 

 Spallanzani, 22-3, 36 



