SUBJECT INDEX 



943 



Pyridoxal phospliokinase, product inhi- 

 bition, 145 



Pyrophosphatase, substrate inhibition, 

 111, 132 



Pyrophosphate, inhibition of succinate 

 oxidase, 



effect on temperature characteristics, 

 798 



Pyruvate decarboxylase, 



inhibition by phosphate, 839 



by SH-agents, protection by sub- 

 strate, 558 

 product inhibition, 180 



Pyruvate incorporation into cycle, stim- 

 ulation by malonate, 452 



PjTuvate oxidase, inhibition by p-chlo- 

 romercuribenzoate, 



failure of cysteine and dimercaprol to 

 reverse, 622 



Pyruvate pathways of metabolism, 483- 

 484 



^umacrme, 

 concentration in tissues, 395 

 intracellular distribution of, 413 



Quinine, inhibition of cholinesterase, 

 temperature characteristics of, 795-796 



^uinones, 



stimulation of Arbacia egg respiration. 



452 



of deoxyribonuclease, 452 



of erythrocj-te respiration, 452 



of liver respiration. 452 



of spermatozoal respiration, 452 



R 



Rate constants, 



effect of dielectric constant on, 808 

 of ionic strength on, 823-826 

 of pressure on, 842-843 

 of temperature on, 757 



Rate equations, general procedure for 

 derivation, 32-33 



Rate of inhibition, 535-603 

 competitive, 552-558 

 concentration-time curves, 595-603 

 effect of dielectric constant on, 807-809 



of pH on, 704-706 



of population variation on, 590-595 



of secondary inactivation on, 561- 



569 



of temperature on, 558-561, 756-760 

 expressions for, 536-541 

 in mitochondria and cells, 571-590 

 in mutual depletion systems, 548-552 

 of cholinesterase, 



by E-600, 590-591 



by HgCU, 545-546 



by physostigmine, 557-558 

 of glycolysis, 



by HgCla, 580-581 



by iodoacetate, 582-588 

 of lactate dehydrogenase by p-chloro- 

 mercuribenzoate, 546 

 of monoamine oxidase by iproniazid, 

 545-546 



of pure enzymes, 541-548 

 of respiration by heavy metal ions, 

 581-582, 588-590 

 Ratio of Kj/K,, 



determination of, 182-183 

 interpretation of, 104-105 



Reactivation, see also Reversal of inhi- 

 bition 



effect on kinetics of cholinesterase in- 

 hibition. 569 



Refraction. 



anisotropy, due to asymmetric polar- 

 izability, 219 



dependence on polarizability, 218 

 double bond conjugation and. 219 

 molar, see Molar refraction 



Regenerative systems, 354-368 

 buffer capacity of, 361 

 concentration of regenerant 357 

 effect of reactant concentration, 358- 

 359 



of regenerant concentration, 358-359 

 examples of, 355-356 

 inhibition of, 360-361 



