Question: 4). Answer the following questions regarding the interactions between electrons and membrane prot…

4). Answer the following questions regarding the interactions
between electrons and membrane proteins in the mitochondrial
electron transport chain (ETC).

a). The ETC is composed of a series of proteins embedded in the
inner mitochondrial membrane. How do the electronegativities of the
proteins differ and why is this significant? What is the terminal
electron acceptor at the end of the electron transport chain?

b). How does the energy of an electron change as it moves down
the electron transport chain?

c). Free energy is used to pump protons across the inner
mitochondrial membrane. Where does this energy come from?