Answer to Question #328462 in Biology for Tasmia

Question

In Calvin cycle: C-3 cycle,

If Fructose-6-phosphate &

Glyceraledehyde-3-phosphate are being used to make the Erithrose-4-phosphate & Xylulose-5-phosphate..

And if in this process, they ( Fructose-6-phosphate & Glyceraledehyde-3-phosphate ) are using all of their carbons (6+3) , then where is this glucose coming from?