Q. Last (ultimate) electron receptor in aerobic respiration is :
Q. Last (ultimate) electron receptor in aerobic respiration is :
(a) CO2
(b) O2
(c) H2
(d) NADH
Solution :
Correct option : B The electron transport chain catalyses an electron flow from NADH (FADH2) to oxygen, which is the final electron acceptor of the respiratory process. It produces water in the mitochondrial matrix NADH+H+⇌NAD++2H++2e− FADH2⇌FAD+2H++2e− 1/2O2+2H++2e−⟶H2O
