Question 1

What is the relationship between obesity and UCP-1?

Accepted Answer

Obesity leads to a decrease in brown-fat adipose, a tissue rich in UCP-1.

Question 2

In the malate-aspartate shuttle, electrons from NADH are transferred to _____________, forming malate.

Accepted Answer

A)  oxaloacetate 
B)  aspartate 
C)  acetate 
D)  glutamate 
E)  None of the above. 
A)  oxaloacetate 
B)  aspartate 
C)  acetate 
D)  glutamate 
E)  None of the above. A

Question 3

Provide a brief description of oxidative phosphorylation.

Accepted Answer

It is the process in which ATP is formed, due to the transfer of electrons from NADH or FADH2 to O2 by a series of electron carriers in the inner membrane of the mitochondria.

Question 4

When glucose is totally oxidized to CO2 and H2O, how many ATP molecules are made by oxidative phosphorylation out of a maximum yield of how many ATP molecules?

Accepted Answer

A)  12 out of 30 
B)  26 out of 30 
C)  26 out of 32 
D)  12 out of 38 
E)  None of the above. 
A)  12 out of 30 
B)  26 out of 30 
C)  26 out of 32 
D)  12 out of 38 
E)  None of the above.

Question 5

Acceptor control of oxidative phosphorylation means that the rate of respiration depends upon the level of __________________.

Accepted Answer

The answer of Acceptor control of oxidative phosphorylation means that...

Question 6

How is oxidative phosphorylation regulated?

Accepted Answer

The electrons do not flow unless ADP is

Question 7

The subunit of the ATPase embedded in the inner mitochondrial membrane is the:

Accepted Answer

A)  anchor subunit. 
B)  membrane-c ring subunit. 
C)  F0 subunit. 
D)  F1 subunit. 
E)  Fm subunit. 
A)  anchor subunit. 
B)  membrane-c ring subunit. 
C)  F0 subunit. 
D)  F1 subunit. 
E)  Fm subunit.

Question 8

What type of gradient is critical to ATP formation by oxidative phosphorylation?

Accepted Answer

A)  sodium ion 
B)  chloride ion 
C)  proton 
D)  potassium ion 
E)  None of the above. 
A)  sodium ion 
B)  chloride ion 
C)  proton 
D)  potassium ion 
E)  None of the above.

Question 9

Atractyloside inhibits the mitochondrial protein _______________.

Accepted Answer

A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs 
A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs

Question 10

__________________: The number of ATP molecules produced by the transfer of electrons from NADH.

Accepted Answer

The answer of __________________: The number of ATP molecules produced...

Question 11

How does the glycerol 3-phosphate shuttle function?

Accepted Answer

Electrons from NADH are transferred to D

Question 12

_______________ is the mechanism for the proton-driven ATP synthesis.

Accepted Answer

A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs 
A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs

Question 13

What is the mechanism for nonshivering thermogenesis?

Accepted Answer

Tissues rich in brown-fat mito

Question 14

A diet pill that acts to increase oxygen consumption during electron transport without ATP production is likely what kind of compound?

Accepted Answer

A)  an uncoupler 
B)  an ATP synthase activator 
C)  a Site I inhibitor 
D)  a Site II activator 
E)  cyanide 
A)  an uncoupler 
B)  an ATP synthase activator 
C)  a Site I inhibitor 
D)  a Site II activator 
E)  cyanide

Question 15

Electron flow down the electron-transport chain leads to:

Accepted Answer

A)  the transport of protons across the inner mitochondrial membrane from inside the matrix to the intermembrane space. 
B)  the transport of protons across the inner mitochondrial membrane from the intermembrane space into the matrix. 
C)  the coupled synthesis of GTP. 
D)  a dangerous imbalance of K+ ions across the mitochondrial membrane. 
E)  None of the above. 
A)  the transport of protons across the inner mitochondrial membrane from inside the matrix to the intermembrane space. 
B)  the transport of protons across the inner mitochondrial membrane from the intermembrane space into the matrix. 
C)  the coupled synthesis of GTP. 
D)  a dangerous imbalance of K+ ions across the mitochondrial membrane. 
E)  None of the above.

Question 16

Which form of the ATPase subunits is responsible for phosphorylation of ADP?

Accepted Answer

A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs 
A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs

Question 17

What was the proof that the ATP synthase was rotating?

Accepted Answer

Using cloned ɑ3β3 subunits, with the β s

Question 18

_______________ is a process by which cytoplasmic NADH can be reoxidized by O2 by using the electron-transport system.

Accepted Answer

A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs 
A) Peter Mitchell 
B) chemiosmotic theory 
C) binding-change 
D) loose 
E) ATP
F)entropy
G)alpha subunit
H)tight
I)glycerol 3-phosphate
J)c ring
K)ATP-ADP translocase
L)malate-aspartate shuttle
M)Sir Hans Krebs

Question 19

The F1 component of ATP synthase is composed of:

Accepted Answer

A)  three alpha subunits. 
B)  three beta subunits. 
C)  a delta subunit. 
D)  All of the above. 
E)  None of the above. 
A)  three alpha subunits. 
B)  three beta subunits. 
C)  a delta subunit. 
D)  All of the above. 
E)  None of the above.

Question 20

What is the difference in the electron flow during the reoxidation of FADH2 as compared to NADH.

Accepted Answer

Electrons flow from FADH2 to o

Exam 21: The Proton-Motive Force

What is the relationship between obesity and UCP-1?

In the malate-aspartate shuttle, electrons from NADH are transferred to _____________, forming malate.

Provide a brief description of oxidative phosphorylation.

When glucose is totally oxidized to CO2 and H2O, how many ATP molecules are made by oxidative phosphorylation out of a maximum yield of how many ATP molecules?

Acceptor control of oxidative phosphorylation means that the rate of respiration depends upon the level of __________________.

How is oxidative phosphorylation regulated?

The subunit of the ATPase embedded in the inner mitochondrial membrane is the:

What type of gradient is critical to ATP formation by oxidative phosphorylation?

Atractyloside inhibits the mitochondrial protein _______________.

__________________: The number of ATP molecules produced by the transfer of electrons from NADH.

How does the glycerol 3-phosphate shuttle function?

_______________ is the mechanism for the proton-driven ATP synthesis.

What is the mechanism for nonshivering thermogenesis?

A diet pill that acts to increase oxygen consumption during electron transport without ATP production is likely what kind of compound?

Electron flow down the electron-transport chain leads to:

Which form of the ATPase subunits is responsible for phosphorylation of ADP?

What was the proof that the ATP synthase was rotating?

_______________ is a process by which cytoplasmic NADH can be reoxidized by O2 by using the electron-transport system.

The F1 component of ATP synthase is composed of:

What is the difference in the electron flow during the reoxidation of FADH2 as compared to NADH.

Biochemistry and the Unity of Life

Water, Weak Bonds, and the Generation of Order Out of Chaos

Amino Acids

Protein Three-Dimensional Structure

Techniques in Protein Biochemistry

Basic Concepts of Enzyme Action

Kinetics and Regulation

Mechanisms and Inhibitors

Hemoglobin: an Allosteric Protein

Carbohydrates

Lipids

Membrane Structure and Function

Signal Transduction Pathways

Digestion: Turning a Meal Into Cellular Biochemicals

Metabolism: Basic Concepts and Design

Glycolysis

Gluconeogenesis

Preparation for the Cycle

Harvesting Electrons From the Cycle

The Electron Transport Chain

The Light Reactions

The Calvin Cycle

Glycogen Degradation

Glycogen Synthesis

The Pentose Phosphate Pathway

Fatty Acid Degredation

Fatty Acid Synthesis

Lipid Synthesis

Amino Acid Degradation and the Urea Cycle

Amino Acids Synthesis

Nucleotide Metabolism

The Structure of Informational Macromolecules: Dna and Rna

DNA Replication

DNA Repair and Recombination

RNA Synthesis and Regulation in Prokaryotes

Gene Expression in Eukaryotes

RNA Processing in Eukaryotes

The Genetic Code

The Mechanism of Protein Synthesis

Recombinant Dna Techniques

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