And so in the final step, what our cells actually do is they use an ATP molecule, transfer the phosphoral group from ATP onto the UDP that we basically formed in this step here. So we take the UDP, we take an ATP and we transfer that phosphorus loop onto this to basically reform the UTP that now can be used in this step to continually produce the UDP glucose molecules needed to generate that glycogen. And the enzyme that catalyzed this step is nucleocide difosphokinase. So in this final step, an ATP is used to phosphorylate a UDP and that regenerates that UTP. So once again, let's very briefly overview this entire process. So we ingest a meal that is rich in sugar molecules.