CARBOHYDRATE METABOLIC PATHWAYS 



79 



R-5-P 



S 105,000 

 S 25,000 



10 20 30 40 



Time (minutes) 



50 



Fig. 3.10. Disappearance of added pentose in rabbit kidney (non- 

 oxidative). 



Sio5 000 = soluble after centrifuging 1 hour at 105,000g 

 S05 000 = soluble after centrifuging 30 minutes at 25,000g 

 Sqqq = soluble after centrifuging 20 minutes at 600g 



lation non-oxidatively of SH-7-P and hexoses are seen to 

 be associated with the fraction sohible (in a centrifugal field 

 of 105,000g); in other words, the fraction of the cytoplasm 

 from which both the mitochondria and microsomes have 

 been removed. The 8105,000 fraction appears to be as active 

 as the 8(300 or 805,000 fractions, which contain either micro- 

 somes (805000) or also the mitochondria (Sqoo) (Fig. 3.10). 



