ETC

Question 1

where is oxidative phosphorylation carried out?

Answer 1

in the inner membrane of mitochondria

Question 2

oxidation of NADH and reduction of O2 has delta G of ___, for FADH2 it is ___

Answer 2

-220kJ; -150 kJ

Question 3

complex 2 is actually the enzyme:

Answer 3

succinate dehydrogenase

Question 4

complex one is called ___ and has the prosthetic group ___

Answer 4

NADH dehydrogenase; FMN

Question 5

which complex is O2 reduced?

Answer 5

Complex 4

Question 6

H+ are transported out of matrix into intermembrane space in which complexes?

Answer 6

1,3, 4

Question 7

what are the proteins associated with complex 3?

Answer 7

ubiquinone, cytochrome c oxidoreductase, cytochrome b and c1, Fe-S proteins

Question 8

what are the proteins associated with complex 4?

Answer 8

cyctochrome oxidase, cytochrome a and a3, Cu-S proteins

Question 9

electrons move from ___ reduction potential to ____ reduction potential

Answer 9

lower; higher

Question 10

move from ___ free energy to ___ free energy

Answer 10

high; low

Question 11

what are the inhibitors of transfer of E from Complex 1 to Coenzyme Q?

Answer 11

rotenone (rat poison) and amytal

Question 12

what is the inhibitor of transfer from Coenzyme Q to complex 3

Answer 12

antimycin A (antibiotic)

Question 13

what are the inhibitors of transfer from complex 4 to O2?

Answer 13

cyanide, carbon monoxide, N3 (amide)