Biological redox reactions of alcohols and phenols | Chemical Processes | MCAT | Khan Academy

[@missjhavanyk7608]

I have a question about the name of the energy carrier, do I call the energy carrier NAD^+, NADH, NADH+H^+ or NAD. My textbook says that NADH is the energycarrier and then they say NAD^+ is the energycarrier. So what do we call this energy carrier? Thanks in advance