* NAD+ (Nicotinamide adenine dinucleotide): This is a crucial coenzyme in both glycolysis and the citric acid cycle. NAD+ accepts electrons and a proton (H+) to become NADH, carrying these reducing equivalents to the electron transport chain where they are used to generate ATP.
* FAD (Flavin adenine dinucleotide): FAD is a coenzyme used in the citric acid cycle (specifically the conversion of succinate to fumarate). It accepts two electrons and two protons to become FADH2, carrying these reducing equivalents to the electron transport chain for ATP production.
Let me know if you'd like more detail about how these coenzymes work within the different stages of cellular respiration!
