Photosynthetic Phosphorylation and Oxidative Phosphorylation Appear to Be Generally Similar
Photosynthetic phosphorylation and oxidative phosphorylation appear to be generally similar processes,both consisting of ATP synthesis coupled to the transfer of electrons along an electron carrier chain.Which of the following is not true of both processes?
A)Both contain cytochromes and flavins in their electron carrier chains.
B)Both processes are associated with membranous elements of the cell.
C)Both use oxygen as a terminal electron acceptor.
D)Each represents the major route of ATP synthesis in those cells in which it is found.
E)Protons are pumped from the inside to the outside of both mitochondria and chloroplast membranes
Oxidative phosphorylation and photophosphorylation share all of the following except:
B)involvement of cytochromes.
C)participation of quinones.
D)proton pumping across a membrane to create electrochemical potential.
E)use of iron-sulfur proteins.
The experimental determination of the effectiveness of light of different colors in promoting photosynthesis is called the:
In what order do the following five steps occur in the photochemical reaction centers? 1)Excitation of the chlorophyll a molecule at the reaction center
2)Replacement of the electron in the reaction center chlorophyll
3)Light excitation of antenna chlorophyll molecule
4)Passage of excited electron to electron-transfer chain
5)Exiton transfer to neighboring chlorophyll