302 



Index 



Nerve cells, sensory, 262 



implantation of mouse sarcomas, 

 284. 285 

 sympathetic, implantation of mouse 

 sarcomas, 288 

 response to purified salivary NGF. 

 289 

 Nerve centers, differentiation and 

 growth, 278 

 role of peripheral affectors and re- 

 ceptors in, 278 

 sensory ganglia, 280. 281 

 Nervous system, central. 261 

 chick embryo, 263 



developmental mechanisms. 263. 278 

 differentiation. 261 

 first differentiative phase, 263 

 growth of. 261 

 mass migration. 268ff. 

 Purkinje cells. 280 

 regional patterns. 265ff., 268 

 second differentiative phase, 264 

 Neural tube, 265, 278 

 Neuroblasts, 263-265 

 NGF, 291, 292 

 distribution. 289 



response in sympathetic nerve cells. 

 289 

 Nitrogen, 12 

 chemistry of. 2 

 excretion, 59, 60 

 Nucleohistone, 106 



Nucleotide, diphosphopyridine. 20, 76. 

 78 

 pyridine, 20-27 

 sequence, 244 

 triphosphopyridine, 21 

 Nucleus, 179, 216 



cellular determination of size, 180 

 cellular differentiation, 109 

 macromolecular fractions, dialyzed, 

 109. 115 

 injected into fertilized eggs, 109 

 migration. 275 



multiplication in foreign cytoplasm. 

 109 



Octopine, 57 

 Opalinids, 213 

 Operon, 245 



adult, 252 



larval. 252 



pupal, 252 

 Opisthe, 196 

 Optic vesicle, 224 

 Oral apparatus, 196 



Oral apparatus, doublet. 209 



meridian. 183, 190, 194 



Paramecium, 170, 175, 209 



rudiment, doublet. 186, 189 

 singlet, 186, 189 

 Organelles. 198, 199. 209 

 Organic compounds, phosphate in. 10 

 Ornithine, 62 

 Orthophosphate, 38 



converted to pyrophosphate. 40 

 Oxidation, of carbon. 5 



of nitrogen. 5 



phosphorylation. 25, 26. 72. 86, 87 



of surface elements, 6 

 Oxidation state. 5 



Oxygen, atomic abundances relative to, 

 4 



chemistry of, 2 



free, 6 



molecular. 22 



Paramecium aurelia, 167. 168, 184, 206- 

 208. 210, 212-214, 216 



cell structure, genetic function, 167 



cortical structure, 167 



hereditary differences in singlets and 

 doublets, 175 



oral apparatus. 170, 175. 209 

 Parasomal sac, 171 

 Periodic acid-Schiff procedure, 232 

 Petroleum, 3 



PGA (phosphoglyceric acid). 19 

 Phenotypes, 173 



clonal, 175 

 Phosphagens, 55. 56 

 Phosphate, carbamyl, 62 



creatine, 55 



in organic compounds. 10 

 Phosphorylation, aldolases, 71 



enzymes, 81 



oxidation, 25. 26. 72, 86, 87 



reversibility, 25 

 Photosynthesis. 16-18 



in algae, 17 



alkaline, 114, 115 

 acid diagram, 116 



apparatus, 17 



ATP, 25 



in bacteria. 17 



carbon cycle. 18, 21 



evolution, 15. 17 



in green plants, 17, 27 



mechanism, 17 



modern, 16 



primitive, 32 



quantum conversion, 20 



