Biology / Unit 3 Bio 0536 short lesson, about 20 seconds
Electron Carriers: NAD+ and FAD
Captions available
The idea
NAD+ and FAD are electron-carrier molecules, derived from B vitamins, that accept high-energy electrons to become NADH and FADH2 for later energy use.
In practice
NADH, the reduced form of NAD+, carries electrons from glycolysis onward to the electron transport chain.
Where people slip
A carrier's reduced form, marked by the added "H," holds the energy — its oxidized form must be regenerated.
Your place on the trail
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