Now what about ribose phyphosphate? Well, ribose phyphosphate is a molecule that is basically needed to build nucleotide based molecules. So molecules such as DNA molecules and RNA molecules depend on the presence of ribose phyphosphate. So faracell needs to build, for instance, DNA molecules. It needs to use, it needs to have a supply of ribose phosphate. So once again in this particular case, when our cells need the NADPH as much as they actually need the ribose phyphosphate, this is what the cell will carry out.