Question

If rotenone is added to the mitochondrial electron transport chain then ____________

(a) Succinate oxidation remains normal

(b) P: O ratio of NADH is reduced from 3:1 to 2:1

(c) Oxidative phosphorylation is uncoupled at site I

(d) Rate of NADH oxidation is diminished to two-thirds of its initial value

Answer 1

Correct choice is (a) Succinate oxidation remains normal

To explain I would say: If rotenone is added to the mitochondrial electron transport chain succinate oxidation remains normal.