^lEstimated or colculoled from available data. 

 ^Initial concentration. 

 '^Ftna! concentration. 

 Decreose in log of molor concentration of oxidized 



cytochrome c per minute for 1:150 tissue dilution. 

 *Decrease in log of molor concentration of reduced 



cytochrome c per minute for 1:100 tissue dilution. 



*Alog [cytochrome c]/mg.wet wt./min. 



8~A log [ferricytochrome c]/mg. protein/min. 



"Moles substrate converted/kilo protein/hour (Fo 

 oxoplosm, protein = total protein; for sheath, 

 protein of non-col logenous component). 



'A log [ferricytochrome cl/mq. protein/min. 



JA log [CyFe**]/min. 



Activity/mg. N when standard activity : 

 A log (CyFe*^" ■ ■ 



M 



final tissue di lution 



Jt nJo 



' Activity/mg. protein when activity : 

 Alog [cytochrome c] 



At (min.) 



"'mM moles cytochrome c reduced (mg. N) ' min. ' 

 "mM moles DPNH oxidized (mg. N)"' min.-^ 

 °mti moles cytochrome c oxidized (mg. N) * min. ' 

 ''Moles cytochrome c reduced/mg. tissue/5 min. at 

 10°C. (extinction coefficient of reduced cyto- 

 chrome c taken as 2.8 x IQ-' cm.Vmol.). 



*'0. D. of clear supernatant 



'^A O. D./mg. protein/min. 



^Moles DPN reduced/g.wet wt./hi 



'Additionol respiratory data on in- 

 present in originol paper and nc 

 Section 2. 



measured at 520 m*i. 



irtebrate tissues 

 included in 



