Page .1
, Test Bank: Lehninger Principles of Biochemistry, 7th
Edition, David L. Nelson Chapters 1-28.
1. In .a .bacterial .cell, .the .DNA .is .in
.the:
A) cell .envelope.
B) cell .membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A .major .change .occurring .in .the .evolution .of .eukaryotes .from .prokaryotes .was
.the
development .of:
A) DNA.
B) photosynthetic .capability.
C) plasma .membranes.
D) ribosomes.
E) the .nucleus.
3. In .eukaryotes, .the .nucleus .is .enclosed .by .a .double .membrane .called
.the:
A) cell .membrane.
B) nuclear .envelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The .dimensions .of .living .cells .are .limited, .on .the .lower .end .by .the .minimum .number
.of .biomolecules .necessary .for .function, .and .on .the .upper .end .by .the .rate .of
.diffusion .of
solutes .such .as .oxygen. .Except .for .highly .elongated .cells, .they .usually .have .lengths
.and .diameters .in .the .range .of:
A) 0.1 .m .to .10 .m.
B) 0.3 .m .to .30 .m.
C) 0.3 .m .to .100 .m.
D) 1 .m .to .100 .m.
E) 1 .m .to .300 .m.
Page .2
,5. Which .group .of .single-celled .microorganisms .has .many .members .found .growing
.in
extreme .environments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None .of .the .answers .is .correct.
6. The .bacterium .E. .coli .requires .simple .organic .molecules .for .growth .and .energy—it
.is
therefore .a:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which .is .a .list .of .organelles?
A) mitochondria, .chromatin, .endoplasmic .reticulum
B) peroxisomes, .lysosomes, .plasma .membrane
C) proteasomes, .peroxisomes, .lysosomes
D) mitochondria, .endoplasmic .reticulum, .peroxisomes
E) All .of .the .answers .are .correct.
8. Which .list .has .the .cellular .components .arranged .in .order .of .INCREASING
.size?
A) amino .acid .< .protein .< .mitochondrion .< .ribosome
B) amino .acid .< .protein .< .ribosome .< .mitochondrion
C) amino .acid .< .ribosome .< .protein .< .mitochondrion
D) protein .< .amino .acid .< .mitochondrion .< .ribosome
E) protein .< .ribosome .< .mitochondrion .< .amino .acid
9. The .three-dimensional .structure .of .macromolecules .is .formed .and .maintained
.primarily .through .noncovalent .interactions. . Which .one .of .the .following .is .NOT
.considered .a
noncovalent .interaction?
A) carbon-carbon .bonds
Page .3
, B) hydrogen .bonds
C) hydrophobic .interactions
D) ionic .interactions
E) van .der .Waals .interactions
10. Which .element .is .NOT .among .the .four .most .abundant .in .living
.organisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
11. The .four .covalent .bonds .in .methane .(CH4) .are .arranged .around .carbon .to .give
.which
geometry?
A) linear
B) tetrahedral
C) trigonal .bipyramidal
D) trigonal .planar
E) trigonal .pyramidal
12. What .functional .groups .are .present .on .this
.molecule?
A) ether .and .aldehyde
B) hydroxyl .and .aldehyde
C) hydroxyl .and .carboxylic .acid
D) hydroxyl .and .ester
E) hydroxyl .and .ketone
13. The .macromolecules .that .serve .in .the .storage .and .transmission .of .genetic
.information
are:
A) carbohydrates.
B) lipids.
Page .4
, Test Bank: Lehninger Principles of Biochemistry, 7th
Edition, David L. Nelson Chapters 1-28.
1. In .a .bacterial .cell, .the .DNA .is .in
.the:
A) cell .envelope.
B) cell .membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A .major .change .occurring .in .the .evolution .of .eukaryotes .from .prokaryotes .was
.the
development .of:
A) DNA.
B) photosynthetic .capability.
C) plasma .membranes.
D) ribosomes.
E) the .nucleus.
3. In .eukaryotes, .the .nucleus .is .enclosed .by .a .double .membrane .called
.the:
A) cell .membrane.
B) nuclear .envelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The .dimensions .of .living .cells .are .limited, .on .the .lower .end .by .the .minimum .number
.of .biomolecules .necessary .for .function, .and .on .the .upper .end .by .the .rate .of
.diffusion .of
solutes .such .as .oxygen. .Except .for .highly .elongated .cells, .they .usually .have .lengths
.and .diameters .in .the .range .of:
A) 0.1 .m .to .10 .m.
B) 0.3 .m .to .30 .m.
C) 0.3 .m .to .100 .m.
D) 1 .m .to .100 .m.
E) 1 .m .to .300 .m.
Page .2
,5. Which .group .of .single-celled .microorganisms .has .many .members .found .growing
.in
extreme .environments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None .of .the .answers .is .correct.
6. The .bacterium .E. .coli .requires .simple .organic .molecules .for .growth .and .energy—it
.is
therefore .a:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which .is .a .list .of .organelles?
A) mitochondria, .chromatin, .endoplasmic .reticulum
B) peroxisomes, .lysosomes, .plasma .membrane
C) proteasomes, .peroxisomes, .lysosomes
D) mitochondria, .endoplasmic .reticulum, .peroxisomes
E) All .of .the .answers .are .correct.
8. Which .list .has .the .cellular .components .arranged .in .order .of .INCREASING
.size?
A) amino .acid .< .protein .< .mitochondrion .< .ribosome
B) amino .acid .< .protein .< .ribosome .< .mitochondrion
C) amino .acid .< .ribosome .< .protein .< .mitochondrion
D) protein .< .amino .acid .< .mitochondrion .< .ribosome
E) protein .< .ribosome .< .mitochondrion .< .amino .acid
9. The .three-dimensional .structure .of .macromolecules .is .formed .and .maintained
.primarily .through .noncovalent .interactions. . Which .one .of .the .following .is .NOT
.considered .a
noncovalent .interaction?
A) carbon-carbon .bonds
Page .3
, B) hydrogen .bonds
C) hydrophobic .interactions
D) ionic .interactions
E) van .der .Waals .interactions
10. Which .element .is .NOT .among .the .four .most .abundant .in .living
.organisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
11. The .four .covalent .bonds .in .methane .(CH4) .are .arranged .around .carbon .to .give
.which
geometry?
A) linear
B) tetrahedral
C) trigonal .bipyramidal
D) trigonal .planar
E) trigonal .pyramidal
12. What .functional .groups .are .present .on .this
.molecule?
A) ether .and .aldehyde
B) hydroxyl .and .aldehyde
C) hydroxyl .and .carboxylic .acid
D) hydroxyl .and .ester
E) hydroxyl .and .ketone
13. The .macromolecules .that .serve .in .the .storage .and .transmission .of .genetic
.information
are:
A) carbohydrates.
B) lipids.
Page .4
