Question 1

The final reduced species in the electron transport chain is

Accepted Answer

A)  O2 
B)  H2O 
C)  cytochrome c 
D)  coenzyme Q 
A)  O2 
B)  H2O 
C)  cytochrome c 
D)  coenzyme Q

Question 2

Another name for Complex I in the mitochondria is

Accepted Answer

A)  Cytochrome C oxidase. 
B)  NADH-CoQ oxidoreductase. 
C)  succinate-CoQ reductase. 
D)  Cytochrome A oxidase. 
E)  Cytochrome bc1 complex. 
A)  Cytochrome C oxidase. 
B)  NADH-CoQ oxidoreductase. 
C)  succinate-CoQ reductase. 
D)  Cytochrome A oxidase. 
E)  Cytochrome bc1 complex.

Question 3

Iron deficiency in a cell can adversely affect electron transport at which of the following sites?

Accepted Answer

A)  coenzyme Q and FADH2 
B)  NADH and FADH2 
C)  cytochrome b and cytochrome c 
D)  coenzyme Q and NADH 
A)  coenzyme Q and FADH2 
B)  NADH and FADH2 
C)  cytochrome b and cytochrome c 
D)  coenzyme Q and NADH

Question 4

Most athletes make better aerobic use of energy sources than non-athletes,since they actually have more mitochondria in their cells.

Accepted Answer

A) True 
 B)False

Question 5

Which complex contains cytochrome oxidase?

Accepted Answer

A)  Complex I 
B)  Complex II 
C)  Complex III 
D)  Complex IV 
E)  It is not known where cytochrome oxidase is located. 
A)  Complex I 
B)  Complex II 
C)  Complex III 
D)  Complex IV 
E)  It is not known where cytochrome oxidase is located.

Question 6

An alternative mode of entry into the electron transport chain is the oxidation of

Accepted Answer

A)  malate to oxalosuccinate. 
B)  succinate to fumarate. 
C)  isocitrate to a-ketoglutarate. 
D)  a-ketoglutarate to succinyl-CoA. 
A)  malate to oxalosuccinate. 
B)  succinate to fumarate. 
C)  isocitrate to a-ketoglutarate. 
D)  a-ketoglutarate to succinyl-CoA.

Question 7

How many electrons are required for the complete reduction of one molecule of oxygen gas?

Accepted Answer

A)  one 
B)  two 
C)  four 
D)  eight 
A)  one 
B)  two 
C)  four 
D)  eight

Question 8

In the conformational coupling mechanism for oxidative phosphorylation,the effect of the proton gradient is

Accepted Answer

A)  to inhibit conformational changes in the ATP synthase 
B)  to create more sites for ATP synthesis 
C)  the release of tightly bound ATP from the synthase 
D)  all of these 
E)  none of these 
A)  to inhibit conformational changes in the ATP synthase 
B)  to create more sites for ATP synthesis 
C)  the release of tightly bound ATP from the synthase 
D)  all of these 
E)  none of these

Question 9

Complex IV of the electron transport chain oxidizes ____,reduces ____,and ____ protons in the process.

Accepted Answer

A)  coenzyme Q; cytochrome c; pumps 
B)  cytochrome c; coenzyme Q; pumps 
C)  cytochrome c; O2; doesn't pump 
D)  cytochrome c; O2; pumps 
A)  coenzyme Q; cytochrome c; pumps 
B)  cytochrome c; coenzyme Q; pumps 
C)  cytochrome c; O2; doesn't pump 
D)  cytochrome c; O2; pumps

Question 10

The F1F0 complex is actually a transmembrane complex.

Accepted Answer

A) True 
 B)False

The final reduced species in the electron transport chain is

Another name for Complex I in the mitochondria is

Iron deficiency in a cell can adversely affect electron transport at which of the following sites?

Most athletes make better aerobic use of energy sources than non-athletes,since they actually have more mitochondria in their cells.

Which complex contains cytochrome oxidase?

An alternative mode of entry into the electron transport chain is the oxidation of

How many electrons are required for the complete reduction of one molecule of oxygen gas?

In the conformational coupling mechanism for oxidative phosphorylation,the effect of the proton gradient is

Complex IV of the electron transport chain oxidizes ,reduces ,and protons in the process.

The F₁F₀ complex is actually a transmembrane complex.

Biochemistry and the Organization of Cells

Water: The Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three-Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins: Enzymes

The Behavior of Proteins: Enzymes, Mechanisms, and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids: How Structure Conveys Information

Biosynthesis of Nucleic Acids: Replication

Transcription of the Genetic Code: Biosynthesis of Rna

Protein Synthesis: Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses, Cancer, and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism: Cellular Signaling

Filters

Exam 20: Electron Transport and Oxidative Phosphorylation

The final reduced species in the electron transport chain is

Another name for Complex I in the mitochondria is

Iron deficiency in a cell can adversely affect electron transport at which of the following sites?

Most athletes make better aerobic use of energy sources than non-athletes,since they actually have more mitochondria in their cells.

Which complex contains cytochrome oxidase?

An alternative mode of entry into the electron transport chain is the oxidation of

How many electrons are required for the complete reduction of one molecule of oxygen gas?

In the conformational coupling mechanism for oxidative phosphorylation,the effect of the proton gradient is

Complex IV of the electron transport chain oxidizes ____,reduces ____,and ____ protons in the process.

The F1F0 complex is actually a transmembrane complex.

Biochemistry and the Organization of Cells

Water: The Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three-Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins: Enzymes

The Behavior of Proteins: Enzymes, Mechanisms, and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids: How Structure Conveys Information

Biosynthesis of Nucleic Acids: Replication

Transcription of the Genetic Code: Biosynthesis of Rna

Protein Synthesis: Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses, Cancer, and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism: Cellular Signaling

Filters

Complex IV of the electron transport chain oxidizes ,reduces ,and protons in the process.

The F₁F₀ complex is actually a transmembrane complex.