153. EFFECT OF POTASSIUM ION CONCENTRATION ON O^ CONSUMPTION: ANIMAL TISSUES (Concluded) 



Values for oxidation quotient (*502) are expressed in cu mm oxygen per mg final dry weight of tissue per hour, unless 

 otherwise indicated. Media are described in the appropriate footnotes in terms of quantity of ion per liter of solution. 

 Part VI: GUINEA PIG CEREBRAL CORTEX, VARIOUS RELATIVE 

 CONCENTRATIONS OF POTASSIUM AND SODIUM 



III Besides the above indicated Na- and K-ion concentration, all media contain 0.01 M phosphate as a buffer, 



0.1% glucose as substrate; pH = 7.5. /2/ X = concentration of K+ shown in Column A. 



Contributor : Aebi, H. 



Reference : Canzanelli, A., Rogers, G., and Rapport, D., Am. J. Physiol. n5:309, 1941-42. 



and 



Part VII: RAT AND RABBIT, VARIOUS TISSUES 



Rat 



III Except for rabbit brain where KCl added was 0.1 M. 

 Contributor : Fitzgerald, L. R. 



References : [ l] Lasnitsky, A., C. rend. Soc. bid. 143 :967, 

 and Dixon, K. C, Biochem. J., Lond. 29:157, 1935. 



1949. ( 2] Ashford, C. A., 



Part VIII: FROG SCIATIC NERVE 



Medium: Ringer's solution or isotonic NaCl (no 

 significant difference). 



Contributor : Fitzgerald, L. R. 



Reference : Chang, T. H., Schaffer, M., and 

 Gerard, R. W.. Am. J. Physiol. m^^Sl, 1935. 



Part IX: CRAB LIMB NERVE 



Values are expressed in jjil per gram wet weight of 

 tissue per hour. Species of crab used were mainly 

 Libinia emarginata and Gr apsu s gr apsus . 



/I/ Artificial sea water. 

 Contributor : Fitzgerald, L. R. 

 Reference : Shanes, A. M., and Hopkins, H. 

 Neurophysiol. 12:331. 1948. 



S., J. 



310 



