Cyclonite is a poison that blocks electron transfer between cytochromes b_L and b_H.When this poison is added to a suspension of isolated mitochondria,and when spectroscopic analysis is performed, A)the coenzyme Q pool will be found in the reduced state,and cytochrome c will be found in the oxidized state. B)the coenzyme Q pool will be found in the oxidized state,and cytochrome c will be found in the reduced state. C)the coenzyme Q pool will be found in both oxidized & reduced states,and cytochrome c will be found in only one state. D)the coenzyme Q pool will be found in only one state,and cytochrome c will be found in both oxidized & reduced states. E)both the coenzyme Q pool and cytochrome c will be found in both oxidized & reduced states.

Question

Quizplus · Accepted Answer

Blocking electron transfer between cytochromes b_L and b_H would prevent the oxidation of coenzyme Q, leading it to accumulate in the reduced state. Cytochrome c, downstream in the electron transport chain, would not receive electrons and thus remain in the oxidized state.

Cyclonite Is a Poison That Blocks Electron Transfer Between Cytochromes