mitochondrial ETC and ATP synthesis Flashcards
1
Q
how are the electron transfer components arranged
A
in order from most negative to most positive standard reduction potential.
2
Q
list the redox active molecules in the ETC
A
flavins, iron-sulfur centres, quinones, cytochromes, haems, copper centres,
3
Q
what do reduced flavins act as
A
act as hydrogens because they carry proton and electron
4
Q
how does the iron sulfur cluster carry electrons
A
the iron atom undergoes oxidation and reduction
5
Q
describe the complex 1 NADH-Q oxireductase
A
1MDa in size.it has 14 cnetral subunits and 30 peripheral. some are mitochondrially encoded while others nuclear.
6
Q
what drives proton pumping in complex 1
A
the ubiquinone redox chemistry allows conformational change which drives the protons across.
7
Q
A
