304 



Index 



Synthesis, cell, 243ff. 

 coenzyme A, 81, 84 

 enzyme, 245 

 hemoglobin, 97 

 mechanism, 49, 50 

 molecular, 46 

 polypeptides, 97 

 protein, 97, 244 

 RNA, 240, 249 

 tyrosinase, 101-103, 108 

 urea, 62, 65 



Taurocyamine, 56, 57 

 Teratological phenomena, 199 

 TPNH (triphosphopyridine nucleotide), 

 19, 21 



photoproduced, 25 

 Transfilter inductive effect, 232 

 Trichocysts, 171 

 Triose phosphate, 18, 19 

 Triose phosphate dehydrogenase, 26 

 Triplets, 185 

 Trypsin, 224, 232, 233 

 Tyrosines, 74 



release, 74 



Ultraviolet, far, 32 

 Ultraviolet irradiation, 38, 207 

 Urea, 58, 61, 63 



ammonia converts to, 59 



formation, 64, 65 



production, 59 



synthesis, 62, 65 



in Xenopus laevis, 58 

 Ureogenesis, 62 

 Ureteric bud, 224, 225 



mesenchyme, 224 

 Uric acid, 61 



Vacuole (s), contractile, 193 



meridians, 172 



pores, 185, 186 

 Vestibular-gullet juncture, 207 



Water, 3, 12, 32-34 



X-ray identification, ammonia, 33 



glycine, 34 



methane, 33 

 Xenopus, 212 



