Now the pentosphosate pathway also has several other important roles. Number two is it actually provides our cells, our body, a way to break down five carbon sugars that we ingest from our diet. So it provides a way to break down pencil sugars obtained from the diet. It also provides us a way to synthesize pento sugars, for instance, ribo sugars that we commonly use to synthesize other important biochemical molecules such as DNA molecules, RNA molecules, coenzyme A molecules, ATP molecules, NADH molecules, as well as fad molecules. And the final important role of the pentose phosphate pathway is that it allows us a synthesis and the breakdown of the less common four carbon and seven carbon sugars. Now, as we'll discuss in much more detail in the lectures to come, we can break down the pentosphosphate pathway into two phases or two stages.