INDEX 



269 



Dacus, 45, 54 



Day-degrees accumulation, 146, 148, 149, 



153, 162 

 Debility of larvae, factors in, 158-160 

 Desoxyriljoiuicleic acid, 2, 6 

 Developmental-hatcliing threshold, 147 

 Developmental threshold, 146, 147 

 Dielectric constant, 25, 29 

 Diethyl p-nitrophenyl phosphate, 53 

 Diffusing cajiacity of the lung, 261, 262 

 Diffusion 



between lung and blood, 261, 264 



inter-, intra-celhdar, 166 



limiting of growth, 165, 166 



reaction rate determining, 51 



rotational, 13, 22 

 Diffusion constant, 14, 26, 31-34 



rotatory, 13 

 Di-isopropylfluorophosphate (DFP), 52- 



54 

 Dilatometer, 13 



Dissociation constant, 13, 14, 16 

 Disulfide groups, 21 

 DFP 



irreversible reactions with, 54 



Qio of cholinesterase, action on, 52, 53 

 DPN-ase, 63, 64, 66, 69 

 DPN (diphosphopyridine nucleotide), 



61-63, 65, 67, 68 

 DPX phosphatase, inhibitors of, 62 

 DPN pyrophosphatase, 61-63, 65-67, 69 



activation by boiling, 62, 63 

 Dypsosaurus dorsalis, 99 



E-600, 53 



Echinarachnius, 115, 136-143 



Echinarachnius parma, 116 



Egg weights, 154, 155 



Einstein-Smoluchowski relationship, 26 



Elodea canadensis, 112 



Energy of activation (see Heat of activa- 

 tion) 



Enthalpy, in cholinesterase activity, 49 



Entropy of activation, 31, 34, 47, 49 

 in catalase reactions, 40 



Entropy of reaction, in ATP-ase denatur- 

 ation, 79-80 



Fibroblasts, 119 



Flow birefringence, 14 



Flow method, in rapid reactions, 28-30, 



38, 40, 43, 44 

 Folding, in proteins (see Proteins) 

 Free energy of activation, 31, 40, 47 

 Free energy of reaction, 49 

 Friction ratio, 13, 16 



Glycerated fibers, 83, 86, 87, 94, 95, 97, 

 101, 108 



factors affecting tension, 87-93 



Goodall's 'A', 87 



heat of reaction, 90 



Nl type, 89, 90, 92, 93 



N3 type, 87-92 



pH, temperature, tension relationship, 

 92, 93 



volume change of reaction in, 91, 92 

 Glycerol, 14, 26, 30, 31, 51 

 Growth rates 



diffusion limited, 165 



effect of temperature on, 127-135, 163- 

 165, 168 

 Guaiacol, 39 



Hatching threshold, 145-149, 154-156, 161 



Heat-labile inhibitors 

 purification of, 64 

 specificity of, 65 



Heat of activation of 

 ATP-ase activity, 77-80 

 catalase-HsOo reactions, 25, 31, 38-40 

 cholinesterase activity, 47-49 

 enzyme inhibitions, 52, 54, 56 

 oxygen consumption, 153 



Heat of reaction 

 in glycerated fibers, 90, 92— _^^ 

 in tension-temperature relation,"^97 

 of myosin denaturation, 77-80 

 of reactions in muscle, 108 

 of reversible denaturation, 86 



Heat-stability, of enzymes, 66-69 



'Heat sum', 172 



Helix, 16, 21 



Heme, 25, 34, 40 



Hemiptera, 145 



Hemoglobin, 14, 40. 41, 262 



Hemoprotein, 38 



Henderson-Hasselbach curve, 73, 75 



HgClo , 52 



