Question

-What is the proper order of ETC cytochrome proteins after electrons pass through coenzyme Q?

-In aerobic respiration, "final electron acceptor" is ____, which binds 2H+ and 2e- to form ____.

Answer 1

*Proper order of ETC cytochrome proteins after electrons pass through conezyme Q:

Cytochrome bc_{​​​​​1}​​​​ complex, Cytochrome c oxidase, Cytochrome a and a_{​​​​​​3}​​​​​.

Ubiquinone(coenzyme Q) receives reducing equivalents via FADH₂ complex.The reduced ubiquinone is then oxidized with tthe the transfer of electrons to cytochrome c via cytochrome bc_{​​​​​1}​complex.The electrons are then transferred to cytochrome a and a_{​​​​​​3}​​​​​.

*In aerobic respiration "final electron acceptor" is Oxygen,which binds 2H+ and 2e- to form Water.