Glycogen 



Glucose -1 -phosphate 



K 



i 



Si 



Glucose -6 -phosphate ' 



Fructose 



M ' 



-6-phosphate 



'I 



I 



N! 



Fructose-l , 6-diphosphate 



!fc 



I 



M 



Triose phosphate 



!k 



Lactate — . z~Z— — 



>■ > 



Phosphoglycerate 

 Phosphopyruvate 



I* 

 Ni 



Pyruvate 



Z^ Glucose 



i/ v 

 1 1 atp 



ADP 



(TCA cycle) 



Figure 3. Known intermediary metabolism of carbohydrates in 

 oysters. 



