NADH serves as an electron carrier that can donate its hydrogen to other molecules.

Yes, that's correct. NADH is a crucial component in cellular respiration and energy production. It is produced in the glycolysis and citric acid cycle during the breakdown of glucose. NADH holds onto electrons, making it "reduced," and has the potential to donate these electrons to other molecules. This is a key part of the process of oxidative phosphorylation, where electrons are transferred from NADH to the electron transport chain, leading to the production of ATP, the energy currency of the cell. This makes NADH a very important electron carrier in cellular metabolism.