i6 



SUBCELLULAR PARTICLES 



TETRAZOLIUM 



iwcttrotc -r*- oxalosuccinate (?), 



^J t ! V^ 



^rORMAZAN 



«(c. 



TPN*5 



etc. 



ISOCITRIC. ETC. 

 OEHYOROGENAStS 



:TPNH 



,"0IA(>HORAS£- 

 _A 



o&tdiz«d %\ \ 



— U 



rtduc«d X.! 



*TPNH 



CrTOCMBOME 

 RtOOCTAM- 



fp=i 



►oKoloocetote, 

 e»c. 



MALIC. ETC. 

 DEHVDOOGCNASES 



succinate - 

 X 



oitdiitd X^ ' 



--A\-—' X 



V. 



:DPNH 



"DPNH 



, -OlAPMOIUlf CYTD<>IHO»4£ 



" fp Hj REOUCTASE- 



cyt.b* 



cyt.£i 



cyt.t* 



<■♦♦ ♦t^, , . ♦♦ 



cyt. b' 



-cyt-e,*' 



= cyt.i* 



• fumorate 



SUCCINIC 

 OEMYDROOENASE 



lT/ 



:fpHj 



oMidizvd X^ 



— w 



"SUCCINATE 

 CVTDCMBOMt 



C 

 REDUCTASE" 



cyt.^ 



"CYTOCHROME 

 OXIOASf 



cyt.fi,***=;^cyt.fl3** 



Vz Oi 



-cyt. a 



HjO 



isocifrate ■ 

 efc. 



TETRAZOLIUM 



) 



t t 



♦oxalosuccinafe (?), 

 etc. 



ISOCITRIC. ETC. 

 DEHYDROGENASES 



oxidized X;i 



— U— 

 rcductd X3 



TPN*;?==i:TPNH 



L 



"OIAPHORASE" 



fp;^fpH2 



cyf.b; 

 cyt. C++* 



V 



►FORMAZAN 



lactate," 

 etc. 



LACTIC. ETC. 

 DEHYDROGENASES 



oxidized X7 



-— n— 



reduced Xj 



DPN 



♦ pyruvate, 

 etc. 



+ ' w 



t 



J 



DPNH 



"OIAPHORASE" 



-I- ^ fc...i u + + 



I 



fp;?=tfpH2 



yv___ 



:cyt.b + 



.'% 



B 



Fig. 17. Probable linkage of tctrazolium salts with electron transport of mitochondria (A) 

 and microsomes (B). [From (30).] For discussion of the iliagram see (30). 



