What molecules are the main electron carriers in the Krebs cycle?

The main electron carriers in the Krebs cycle are NAD+ (nicotinamide adenine dinucleotide) and FAD (flavin adenine dinucleotide). During the cycle, NAD+ is reduced to NADH, and FAD is reduced to FADH2, both of which then transport electrons to the electron transport chain. These carriers play a crucial role in facilitating the conversion of the energy stored in acetyl-CoA into usable ATP through oxidative phosphorylation.