Question 1

Complex IV is also known as ________________.

Accepted Answer

Cytochrome c oxidase

Question 2

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-A strong oxidizing agent has a strong tendency to ________________ (accept, donate) electron(s).

Accepted Answer

accept

Question 3

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The electron carrier _______________ is a derivative of quinone and has an isoprenoid tail.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Coenzyme Q is a derivative of quinone and has an isoprenoid tail.

Question 4

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-_______________ is the complex with three Fe-sulfhydryl electron acceptors.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

The answer of Use the following to answer questions
Choose the...

Question 5

________________ is an enzyme that scavenges H2O2 and converts it to molecular oxygen and water.

Accepted Answer

The answer of ________________ is an enzyme that scavenges H2O2...

Question 6

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-_______________ is the prosthetic group in Complex I that accepts electrons from NADH.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Flavin mononucleotide (FMN) is the prosthetic group in Complex I that accepts electrons from NADH.

Question 7

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The permeability of the outer mitochondrial membrane is primarily due to the presence of _______________.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Porins are proteins in the outer mitochondrial membrane that create channels for small molecules and ions to pass through, allowing for the permeability of the membrane.

Question 8

________________ carries electrons from Complex III to Complex IV.

Accepted Answer

The answer of ________________ carries electrons from Complex III to...

Question 9

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-Cytochrome ________________ is the only water-soluble cytochrome of the electron-transport chain.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

The answer of Use the following to answer questions
Choose the...

Question 10

________________ donates electrons to cytochrome C.

Accepted Answer

The answer of ________________ donates electrons to cytochrome C....

Question 11

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The enzyme _______________ catalyzes the reduction of O2.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Cytochrome c oxidase is the enzyme that catalyzes the reduction of O2.

Question 12

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-_______________ is where oxidative phosphorylation occurs in eukaryotes.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Mitochondria is the organelle where oxidative phosphorylation occurs in eukaryotes, specifically in the inner membrane of the mitochondria. The other answer choices are components or steps involved in oxidative phosphorylation but do not refer specifically to the location where it occurs in eukaryotes.

Question 13

The transfer of a single electron to O2 forms the reactive ________________ ion.

Accepted Answer

The answer of The transfer of a single electron to...

Question 14

________________ is/are the result of uncontrolled electron transfer to oxygen

Accepted Answer

The answer of ________________ is/are the result of uncontrolled electron...

Question 15

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The prosthetic group _______________ is present in complexes I, II, and III of electron transport.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

The answer of Use the following to answer questions
Choose the...

Question 16

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-_______________: The process by which cytoplasmic NADH can be oxidized by O2 using the electron-transport system.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Respiration is the process by which cytoplasmic NADH can be oxidized by O2 using the electron-transport system. None of the other choices accurately define respiration.

Question 17

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-_______________ is an ATP-generating process in which an inorganic substance such as oxygen serves as the ultimate electron acceptor.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Respiration is the ATP-generating process in which an inorganic substance such as oxygen serves as the ultimate electron acceptor. The other choices are components or factors involved in the process of respiration, but do not directly relate to this aspect of the process.

Question 18

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-Another name for ubiquinone is ________________.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Ubiquinone is also known as coenzyme Q.

Question 19

Cytochrome c oxidase contains two heme A groups and three ________________ ions.

Accepted Answer

The answer of Cytochrome c oxidase contains two heme A...

Question 20

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The citric acid cycle enzyme _______________ is also part of an electron-transport complex.
A)mitochondria
B)ubiquinone
C)coenzyme Q
D)flavin mononucleotide (FMN)
E)iron-sulfur clusters
F)respiration
G)transporters
H)porins
I)succinate dehydrogenase
J)cytochrome c oxidase
K)Complex II
L)Complex III

Accepted Answer

Succinate dehydrogenase is both an enzyme in the citric acid cycle and part of Complex II in the electron-transport chain. None of the other options are both part of the citric acid cycle and electron-transport chain.

Quiz 20: The Electron Transport Chain

Complex IV is also known as ________________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -A strong oxidizing agent has a strong tendency to ________________ (accept, donate) electron(s).

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The electron carrier _______________ is a derivative of quinone and has an isoprenoid tail.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -_______________ is the complex with three Fe-sulfhydryl electron acceptors.

________________ is an enzyme that scavenges H2O2 and converts it to molecular oxygen and water.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -_______________ is the prosthetic group in Complex I that accepts electrons from NADH.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The permeability of the outer mitochondrial membrane is primarily due to the presence of _______________.

________________ carries electrons from Complex III to Complex IV.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -Cytochrome ________________ is the only water-soluble cytochrome of the electron-transport chain.

________________ donates electrons to cytochrome C.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The enzyme _______________ catalyzes the reduction of O2.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -_______________ is where oxidative phosphorylation occurs in eukaryotes.

The transfer of a single electron to O2 forms the reactive ________________ ion.

________________ is/are the result of uncontrolled electron transfer to oxygen

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The prosthetic group _______________ is present in complexes I, II, and III of electron transport.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -_______________: The process by which cytoplasmic NADH can be oxidized by O2 using the electron-transport system.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -_______________ is an ATP-generating process in which an inorganic substance such as oxygen serves as the ultimate electron acceptor.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -Another name for ubiquinone is ________________.

Cytochrome c oxidase contains two heme A groups and three ________________ ions.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The citric acid cycle enzyme _______________ is also part of an electron-transport complex.