You mix the following components in a reconstituted membrane-bound system. Assuming that the electrons must follow the path specified in Figure 14–14, in which experiments would you expect a net transfer of electrons to cytochrome c?

Discuss why electron transfer does not occur in the other experiments.

A. reduced ubiquinone and oxidized cytochrome c

B. oxidized ubiquinone and oxidized cytochrome c

C. reduced ubiquinone and reduced cytochrome c

D. oxidized ubiquinone and reduced cytochrome c

E. reduced ubiquinone, oxidized cytochrome c, and cytochrome c reductase complex

F. oxidized ubiquinone, oxidized cytochrome c, and cytochrome c reductase complex

G. reduced ubiquinone, reduced cytochrome c, and cytochrome c reductase complex

H. oxidized ubiquinone, reduced cytochrome c, and cytochrome c reductase complex

Figure 14–14

Transcribed Image Text:

INTERMEMBRANE SPACE inner mitochondrial membrane MATRIX NADH NAD+ H+ H+ ubiquinone NADH dehydrogenase complex 10 nm H+ H+ cytochrome c reductase complex cytochrome c H+ 2 H* + 1/2O₂ cytochrome c oxidase complex H₂O