Oxidative Phosporylation

Question 1

Oxidative phosphorylation occurs in the

Answer 1

Inn,er membrane of the mitochondria

Question 2

Endergonic (non spontaneous) reactions happen in the body by

Answer 2

High levels of reactants

Products are constantly used up in other reactions (example OAA)

Question 3

Coupled reactions occur when the energy requiring reactions and the energy yielding reactions share a

Answer 3

Common intermediate

Question 4

Contraction of muscles is fueled by

Answer 4

ATP

Question 5

In complex 1 of the ETC electrons are transferred from________and outputs______H atoms

Answer 5

NADH to coenzyme Q (Ubiquinone); 4

Question 6

In complex 3 of the ETC, electrons are transferred from________which outputs____H atoms

Answer 6

Coenzyme Q to cytochrome c; 4

Question 7

In complex 4 of the ETC electrons are passed from________, reducing it to water and outputting_____H atoms

Answer 7

Cytochrome c to O2; 2

Question 8

In complex 2 of the ETC, electrons are transferred from_______with no output of hydrogen

Answer 8

FADH2 to coenzyme Q

Question 9

Complex 2 contains the enzyme

Answer 9

Succinate dehydrogenase

Question 10

Coenzyme Q is lipid soluble. T/F

Answer 10

True

Question 11

__________inhibits complex 1 and causes NADH to accumulate

Answer 11

Rotenone

Question 12

________blocks the passage of the electrons through complex 3

Answer 12

Antimycins

Question 13

__________and _______combine with complex 4 (cytochrome oxidase) and block the transfer of electrons to O2

Answer 13

Cyanide and carbon monoxide

Question 14

What is the function of uncoupling proteins

Answer 14

They dissipate the proton gradient by transporting protons back into the mitochondria without the ATP synthase

Question 15

A classic uncoupling protein in the ETC is

Answer 15

DNP

Question 16

UCP1 is a coupling protein found in the mitochondria of______and heat is generated in this process

Answer 16

Brown adiposytes tissue