(a) Do the electrons in NADH have the most or the least free energy in the electron transport chain? (b) The electrons in NADH form bonds as they move through the electron transport chain. Do these bond formations use or release energy?

(a) The electrons in NADH have the most free energy in the electron transport chain. (b) These bond formations result in energy being released as the electrons form stronger and stronger bonds as they move through the electron transport chain.