Page 1
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, Test Bank: LehningerPrinciples of Biochemistry, 7th E
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dition, David L. Nelson Chapters 1-28. gf gf gf gf gf
1. In a bacterial cell, the DNA is in the:
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A) cell envelope. gf
B) cell membrane. gf
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was the
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development of: gf
A) DNA.
B) photosynthetic capability. gf
C) plasma membranes. gf
D) ribosomes.
E) the nucleus. gf
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
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A) cell membrane. gf
B) nuclear envelope. gf
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the minimum number of b
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iomolecules necessary for function, and on the upper end by the rate of diffusion of
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solutes such as oxygen. Except for highly elongated cells, they usually have lengths and d
gf gf gf gf gf gf gf gf gf gf gf gf gf gf
iameters in the range of:
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A) 0.1 m to 10 m. gf gf gf gf
B) 0.3 m to 30 m. gf gf gf gf
C) 0.3 m to 100 m. gf gf gf gf
D) 1 m to 100 m.
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E) 1 m to 300 m.
gf gf gf gf
Page 2 gf
,5. Which group of single-celled microorganisms has many members found growing in
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extreme environments?
gf
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
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6. The bacterium E. coli requires simple organic molecules for growth and energy—it is
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therefore a: gf
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
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A) mitochondria, chromatin, endoplasmic reticulum gf gf gf
B) peroxisomes, lysosomes, plasma membrane gf gf gf
C) proteasomes, peroxisomes, lysosomes gf gf
D) mitochondria, endoplasmic reticulum, peroxisomes gf gf gf
E) All of the answers are correct.
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8. Which list has the cellular components arranged in order of INCREASING size?
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A) amino acid < protein < mitochondrion < ribosome
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B) amino acid < protein < ribosome < mitochondrion
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C) amino acid < ribosome < protein < mitochondrion
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D) protein < amino acid < mitochondrion < ribosome
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E) protein < ribosome < mitochondrion < amino acid
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9. The three-
gf
dimensional structure of macromolecules is formed and maintained primarily through no
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ncovalent interactions. Which one of the following is NOT considered a
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noncovalent interaction? gf
A) carbon-carbon bonds gf
B) hydrogen bonds gf
C) hydrophobic interactions gf
D) ionic interactions gf
Page 3 gf
, E) van der Waals interactions
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10. Which element is NOT among the four most abundant in living organisms?
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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
gf gf gf gf gf gf gf gf gf gf gf gf gf
geometry?
A) linear
B) tetrahedral
C) trigonal bipyramidal gf
D) trigonal planar gf
E) trigonal pyramidal gf
12. What functional groups are present on this molecule?
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A) ether and aldehyde
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B) hydroxyl and aldehyde gf gf
C) hydroxyl and carboxylic acid gf gf gf
D) hydroxyl and ester gf gf
E) hydroxyl and ketone gf gf
13. The macromolecules that serve in the storage and transmission of genetic information
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are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. gf
E) proteins.
14. Stereoisomers that are nonsuperimposable mirror images of each other are known as:
gf gf gf gf gf gf gf gf gf gf gf
Page 4 gf
gf
, Test Bank: LehningerPrinciples of Biochemistry, 7th E
gf gf gf gf gf gf gf
dition, David L. Nelson Chapters 1-28. gf gf gf gf gf
1. In a bacterial cell, the DNA is in the:
gf gf gf gf gf gf gf gf
A) cell envelope. gf
B) cell membrane. gf
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was the
gf gf gf gf gf gf gf gf gf gf gf gf
development of: gf
A) DNA.
B) photosynthetic capability. gf
C) plasma membranes. gf
D) ribosomes.
E) the nucleus. gf
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
gf gf gf gf gf gf gf gf gf gf gf
A) cell membrane. gf
B) nuclear envelope. gf
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the minimum number of b
gf gf gf gf gf gf gf gf gf gf gf gf gf gf gf gf
iomolecules necessary for function, and on the upper end by the rate of diffusion of
gf gf gf gf gf gf gf gf gf gf gf gf gf gf
solutes such as oxygen. Except for highly elongated cells, they usually have lengths and d
gf gf gf gf gf gf gf gf gf gf gf gf gf gf
iameters in the range of:
gf gf gf gf
A) 0.1 m to 10 m. gf gf gf gf
B) 0.3 m to 30 m. gf gf gf gf
C) 0.3 m to 100 m. gf gf gf gf
D) 1 m to 100 m.
gf gf gf gf
E) 1 m to 300 m.
gf gf gf gf
Page 2 gf
,5. Which group of single-celled microorganisms has many members found growing in
gf gf gf gf gf gf gf gf gf gf
extreme environments?
gf
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
gf gf gf gf gf
6. The bacterium E. coli requires simple organic molecules for growth and energy—it is
gf gf gf gf gf gf gf gf gf gf gf gf
therefore a: gf
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
gf gf gf gf gf
A) mitochondria, chromatin, endoplasmic reticulum gf gf gf
B) peroxisomes, lysosomes, plasma membrane gf gf gf
C) proteasomes, peroxisomes, lysosomes gf gf
D) mitochondria, endoplasmic reticulum, peroxisomes gf gf gf
E) All of the answers are correct.
gf gf gf gf gf
8. Which list has the cellular components arranged in order of INCREASING size?
gf gf gf gf gf gf gf gf gf gf gf
A) amino acid < protein < mitochondrion < ribosome
gf gf gf gf gf gf gf
B) amino acid < protein < ribosome < mitochondrion
gf gf gf gf gf gf gf
C) amino acid < ribosome < protein < mitochondrion
gf gf gf gf gf gf gf
D) protein < amino acid < mitochondrion < ribosome
gf gf gf gf gf gf gf
E) protein < ribosome < mitochondrion < amino acid
gf gf gf gf gf gf gf
9. The three-
gf
dimensional structure of macromolecules is formed and maintained primarily through no
gf gf gf gf gf gf gf gf gf gf
ncovalent interactions. Which one of the following is NOT considered a
gf g f gf gf gf gf gf gf gf gf
noncovalent interaction? gf
A) carbon-carbon bonds gf
B) hydrogen bonds gf
C) hydrophobic interactions gf
D) ionic interactions gf
Page 3 gf
, E) van der Waals interactions
gf gf gf
10. Which element is NOT among the four most abundant in living organisms?
gf gf gf gf gf gf gf gf gf gf gf
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
gf gf gf gf gf gf gf gf gf gf gf gf gf
geometry?
A) linear
B) tetrahedral
C) trigonal bipyramidal gf
D) trigonal planar gf
E) trigonal pyramidal gf
12. What functional groups are present on this molecule?
gf gf gf gf gf gf gf
A) ether and aldehyde
gf gf
B) hydroxyl and aldehyde gf gf
C) hydroxyl and carboxylic acid gf gf gf
D) hydroxyl and ester gf gf
E) hydroxyl and ketone gf gf
13. The macromolecules that serve in the storage and transmission of genetic information
gf gf gf gf gf gf gf gf gf gf gf
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. gf
E) proteins.
14. Stereoisomers that are nonsuperimposable mirror images of each other are known as:
gf gf gf gf gf gf gf gf gf gf gf
Page 4 gf
