ETC Components

Question 1

Complex 1 name

Answer 1

NADH Dehydrogenase

Question 2

Complex II name

Answer 2

Succinate Dehydrogenase

Question 3

Complexes that are proton pumps

Answer 3

1
3
4

Question 4

Complex __ is not a proton pump

Answer 4

2

Question 5

Complex I accepts electrons from

Answer 5

NADH

Question 6

Complex I transfers electrons to

Answer 6

Ubiquinone (CoQ)

Question 7

Complex II accepts electrons from

Answer 7

FADH2

Question 8

Complex II is also an enzyme in

Answer 8

TCA cycle

Question 9

Complex II transfers electrons to

Answer 9

Ubiquinone (CoQ)

Question 10

Ubiquinone is not a __ or ___

Answer 10

Protein

Proton pump

Question 11

CoQ accepts electrons from __ or __

Answer 11

FMNH2

FADH2

Question 12

FMNH2 is from

Answer 12

NADH dehydrogenase

Question 13

FADH2 is from

Answer 13

Succinate dehydrogenase

Question 14

Complex III name

Answer 14

Cytochrome bc1 complex

Question 15

Complex III accepts electrons from

Answer 15

CoQ

Question 16

Complex III passes electrons to

Answer 16

Cytochrome C

Question 17

Cytochrome C is a __ but not a ___

Answer 17

Protein

Proton pump

Question 18

Cytochrome C is an electron carrier with ___

Answer 18

Iron

Question 19

Cytochrome C donates electrons to

Answer 19

Complex IV

Question 20

Cytochrome C accepts electrons from

Answer 20

Complex III

Question 21

Complex IV name

Answer 21

Cytochrome C oxidase

Question 22

Complex IV is the only protein in ETC that is made of ___ and ___ complexes

Answer 22

Copper

Iron

Question 23

Complexes I, II, and III are proteins made of

Answer 23

Iron-sulfur complexes

Question 24

Complex IV passes electrons to

Answer 24

Oxygen

Question 25

Complex IV accepts electrons from

Answer 25

Cytochrome C

Question 26

NADH cannot pass through

Answer 26

Inner mitochondrial membrane

Question 27

__ is the starting point fo the ETS

Answer 27

NAH

Question 28

This shuttle “moves” NADH electrons from the cytosol to mitochondrial matrix without the loss of reduction potential

Answer 28

Malate aspartate

Question 29

Shuttle that transports NADH without the loss of reducing power

Answer 29

Malate aspartate

Question 30

Glycerophosphate shuttle

Answer 30

Glycerol-3- phosphate goes in to inner mitochondrial membrane

FAD converted to FADH2

DHAP leaves inner mitochondrial membrane

Question 31

NADH yields ___ ATP and FADH2 yields ___ ATP

Answer 31

3

2

Question 32

Nonshivering thermogenesis

Answer 32

Uncoupling oxidative phosphorylation to release energy as heat

Question 33

Oxidative phosphorylation occurs naturally in ____ to control temperature

Answer 33

Brown fat