So things like nucleic acids, so DNA and RNA, ATP molecules, NADH molecules, fad molecules, as well as coenzyme A molecules, all these different things require ribose phyphosphate. Now as it turns out, the majority of the cells of our body most of the time actually require the NADPH much more than they need the ribose phyphosphate molecule. And so what our cells actually do is they take the ribose phyphosphate that is produced via the oxidative phase and they transform that into glycolytic intermediates. Why? Well, because these glycolytic intermediates can now be transformed into glucose phosphate molecules and these glucose six phosphate can undergo the oxidative phase to produce even more NADPH molecules. And it turns out that this process here, the transformation of the ribose phyphosphate into these glycolytic intermediates, is the non oxidative phase of the pentose phosphate pathway.