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ANSWERS ARE BELOW
MOLECULAR BIOLOGY OF THE CELL, SIXTH EDITION BRUCE
ALBERTS TEST BANK
CHAPTER 2: CELL CHEMISTRY AND BIOENERGETICS
1 Which Of The Following Elements Is Not Normally Found In Cells?
A. Copper
B. Iron
C. Silver
D. Cobalt
E. Zinc
2 A Hydrophobic Molecule Is Typically …
A. Able To Form Hydrogen Bonds With Itself But Not With Water.
B. Able To Form Hydrogen Bonds With Water.
C. Charged.
D. Hard To Dissolve In A Solvent.
E. Incapable Of Interacting Favorably With Water.
3 For Each Of The Following Pairs, Indicate Whether They Interact Via Hydrogen
Bonds (H) Or Ionic Bonds (I), Or Do Not Favorably Interact (N). Your Answer Would Be A
Four-Letter String Composed Of Letters H, I, And N Only, E.G. HNNI.
( ) ATP And Mg2+
( ) Urea And
Water
( ) Glucose And The Enzyme Hexokinase (Which Uses Glucose As A
Substrate) ( ) A Phospholipid Tail And Inorganic Phosphate
4 Which Of The Following Chemicals Do You NOT Expect To Be Readily Dissolved In Water?
A. Uric Acid
B. Hexane
C. Glycerol
D. Ethanol
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E. Potassium Chloride
5 Weak Noncovalent Attractions In The Cell Can Be Very Strong In A Nonaqueous
Environment. Some Of These Attractions Are As Strong As Covalent Interactions In A
Vacuum (Their Bond Energy Is Approximately 340 Kj/Mole), But Become More Than
Twenty-Five Times Weaker (Their Bond Energy Becomes Approximately 13 Kj/Mole) In
Water. What Type Of Attraction Shows This Phenomenon?
A. Electrostatic Attractions
B. Hydrogen Bonds
C. Van Der Waals Attractions
D. Hydrophobic Force
E. All Of The Above
6 The Bond Energies Associated With Noncovalent Attractions In The Cell Are Too
Weak To Resist Disruption By Thermal Motion. However, Cellular Macromolecules Can
Interact Specifically AND Strongly With Each Other (Or Fold By Themselves) Merely Via
Such Interactions. How Is This Possible?
A. The Bond Energies Increase Radically When Two Interacting Molecules
Approach Each Other.
B. The Interacting Molecules Also Fortify Their Binding Via Covalent Bonds To
Keep Them From Dissociation.
C. Many Weak Bonds Together In A Complementary Geometry Can Afford A Strong
Binding.
D. The Cell Lowers Its Internal Temperature To Reduce Thermal Motion Of
Molecules And Enhance The Weak Attractions.
7 What Is The Ph Of A 10 –8 M Solution Of Hydrochloric Acid? Round The Ph Value To
The Nearest Integer, E.G. 10.
A. 8
B. 7
C. 6
D. 5
E. 4
8 The Cell Can Change The Ph Of Its Internal Compartments Using Membrane
Transport Proteins That Pump Protons Into Or Out Of A Compartment. How Many Protons
Should Be Pumped Into An Endocytic Vesicle That Is 10–15 Liters In Volume And Has A
Neutral Ph In Order To Change The
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Ph To 5? Avogadro’s Number Is 6 × 1023. Omit Complications Such As The Membrane
Potential, Buffers, And Other Cellular Components.
A. 6000
B. 60,000
C. 120,000
D. 600,000
E. 6,000,000
9 Which Of The Following Is True Regarding A Fatty Acid Molecule In Water?
A. It Is Positively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is High Enough.
B. It Is Positively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is Low Enough.
C. It Is Negatively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is High Enough.
D. It Is Negatively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is Low Enough.
E. It Is Not Charged At Physiological Ph.
10 The Amino Acid Serine Has An Amino Group, A Carboxyl Group, And A
Hydroxyl Group. Which Of The Following Better Represents The Structure Of This Amino
Acid At Neutral Ph?
A B C
H O H O H O
H N+ C H N+ H N+ C
C O– NH C O–
3 3
C C 2 3
CH OH CH
3 2
OH
D H O E H O H O
H3N+ C C HN C C N C C H
2
H OH OH H OH
11 The Three Families Of Cellular Macromolecules Are Polymerized And
Depolymerized By A General Mechanism Involving Water. Each Of Them Has A Set Of
Monomers Whose Polymerization
ANSWERS ARE BELOW
MOLECULAR BIOLOGY OF THE CELL, SIXTH EDITION BRUCE
ALBERTS TEST BANK
CHAPTER 2: CELL CHEMISTRY AND BIOENERGETICS
1 Which Of The Following Elements Is Not Normally Found In Cells?
A. Copper
B. Iron
C. Silver
D. Cobalt
E. Zinc
2 A Hydrophobic Molecule Is Typically …
A. Able To Form Hydrogen Bonds With Itself But Not With Water.
B. Able To Form Hydrogen Bonds With Water.
C. Charged.
D. Hard To Dissolve In A Solvent.
E. Incapable Of Interacting Favorably With Water.
3 For Each Of The Following Pairs, Indicate Whether They Interact Via Hydrogen
Bonds (H) Or Ionic Bonds (I), Or Do Not Favorably Interact (N). Your Answer Would Be A
Four-Letter String Composed Of Letters H, I, And N Only, E.G. HNNI.
( ) ATP And Mg2+
( ) Urea And
Water
( ) Glucose And The Enzyme Hexokinase (Which Uses Glucose As A
Substrate) ( ) A Phospholipid Tail And Inorganic Phosphate
4 Which Of The Following Chemicals Do You NOT Expect To Be Readily Dissolved In Water?
A. Uric Acid
B. Hexane
C. Glycerol
D. Ethanol
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
E. Potassium Chloride
5 Weak Noncovalent Attractions In The Cell Can Be Very Strong In A Nonaqueous
Environment. Some Of These Attractions Are As Strong As Covalent Interactions In A
Vacuum (Their Bond Energy Is Approximately 340 Kj/Mole), But Become More Than
Twenty-Five Times Weaker (Their Bond Energy Becomes Approximately 13 Kj/Mole) In
Water. What Type Of Attraction Shows This Phenomenon?
A. Electrostatic Attractions
B. Hydrogen Bonds
C. Van Der Waals Attractions
D. Hydrophobic Force
E. All Of The Above
6 The Bond Energies Associated With Noncovalent Attractions In The Cell Are Too
Weak To Resist Disruption By Thermal Motion. However, Cellular Macromolecules Can
Interact Specifically AND Strongly With Each Other (Or Fold By Themselves) Merely Via
Such Interactions. How Is This Possible?
A. The Bond Energies Increase Radically When Two Interacting Molecules
Approach Each Other.
B. The Interacting Molecules Also Fortify Their Binding Via Covalent Bonds To
Keep Them From Dissociation.
C. Many Weak Bonds Together In A Complementary Geometry Can Afford A Strong
Binding.
D. The Cell Lowers Its Internal Temperature To Reduce Thermal Motion Of
Molecules And Enhance The Weak Attractions.
7 What Is The Ph Of A 10 –8 M Solution Of Hydrochloric Acid? Round The Ph Value To
The Nearest Integer, E.G. 10.
A. 8
B. 7
C. 6
D. 5
E. 4
8 The Cell Can Change The Ph Of Its Internal Compartments Using Membrane
Transport Proteins That Pump Protons Into Or Out Of A Compartment. How Many Protons
Should Be Pumped Into An Endocytic Vesicle That Is 10–15 Liters In Volume And Has A
Neutral Ph In Order To Change The
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Ph To 5? Avogadro’s Number Is 6 × 1023. Omit Complications Such As The Membrane
Potential, Buffers, And Other Cellular Components.
A. 6000
B. 60,000
C. 120,000
D. 600,000
E. 6,000,000
9 Which Of The Following Is True Regarding A Fatty Acid Molecule In Water?
A. It Is Positively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is High Enough.
B. It Is Positively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is Low Enough.
C. It Is Negatively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is High Enough.
D. It Is Negatively Charged At Physiological Ph, But Can Become Neutral When The
Ph Is Low Enough.
E. It Is Not Charged At Physiological Ph.
10 The Amino Acid Serine Has An Amino Group, A Carboxyl Group, And A
Hydroxyl Group. Which Of The Following Better Represents The Structure Of This Amino
Acid At Neutral Ph?
A B C
H O H O H O
H N+ C H N+ H N+ C
C O– NH C O–
3 3
C C 2 3
CH OH CH
3 2
OH
D H O E H O H O
H3N+ C C HN C C N C C H
2
H OH OH H OH
11 The Three Families Of Cellular Macromolecules Are Polymerized And
Depolymerized By A General Mechanism Involving Water. Each Of Them Has A Set Of
Monomers Whose Polymerization
