Test Bank
Lehninger Principles of Biochemistry 7th Edition
by David L. Nelson and Michael M. Cox
wise
prof
wiseprof
,Chapter 1. The Foundations of Biochemistry
(Answers are at the End of Each Chapter)
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:
wise
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.
prof
C) 0.3 m to 100 m.
D) 1 m to 100 m.
E) 1 m to 300 m.
5. Which group of single-celled microorganisms has many members found
growing in extreme environments?
A) bacteria
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,B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
wise
prof
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, 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
wise
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
B) hydrogen bonds
C) hydrophobic interactions
D) ionic interactions
E) van der Waals interactions
prof
10. Which element is NOT among the four most abundant in living organisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
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wiseprof
Lehninger Principles of Biochemistry 7th Edition
by David L. Nelson and Michael M. Cox
wise
prof
wiseprof
,Chapter 1. The Foundations of Biochemistry
(Answers are at the End of Each Chapter)
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:
wise
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.
prof
C) 0.3 m to 100 m.
D) 1 m to 100 m.
E) 1 m to 300 m.
5. Which group of single-celled microorganisms has many members found
growing in extreme environments?
A) bacteria
Page 1
wiseprof
,B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
wise
prof
Page 2
wiseprof
, 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
wise
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
B) hydrogen bonds
C) hydrophobic interactions
D) ionic interactions
E) van der Waals interactions
prof
10. Which element is NOT among the four most abundant in living organisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page 3
wiseprof
