Lehninger Principles of Biochemistry 8th Edition Ne
zx zx zx zx zx zx
lson Test Bank
zx zx
,1
Page 1
zx
,1. In a bacterial cell, the DNA is in the:
zx zx zx zx zx zx zx zx
A) cell envelope. zx
B) cell membrane. zx
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was th
zx zx zx zx zx zx zx zx zx zx zx zx
e development of:
zx zx
A) DNA.
B) photosynthetic capability. zx
C) plasma membranes. zx
D) ribosomes.
E) the nucleus. zx
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
zx zx zx zx zx zx zx zx zx zx zx
A) cell membrane. zx
B) nuclear envelope. zx
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the minimum number
zx zx zx zx zx zx zx zx zx zx zx zx zx zx zx
of biomolecules necessary for function, and on the upper end by the rate of diffusion
zx zx zx zx zx zx zx zx zx zx zx zx zx zx zx
of solutes such as oxygen. Except for highly elongated cells, they usually have lengths
zx zx zx zx zx zx zx zx zx zx zx zx zx z
and diameters in the range of:
x zx zx zx zx zx
A) 0.1 m to 10 m. zx zx zx zx
B) 0.3 m to 30 m. zx zx zx zx
C) 0.3 m to 100 m. zx zx zx zx
D) 1 m to 100 m. zx zx zx zx
E) 1 m to 300 m. zx zx zx zx
5. Which group of single-
zx zx zx
celled microorganisms has many members found growing in extreme environment
zx zx zx zx zx zx zx zx zx
s?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
zx zx zx zx zx
Page 2 zx
, 2
6. The bacterium E. coli requires simple organic molecules for growth and energy—
zx zx zx zx zx zx zx zx zx zx zx
it is therefore a:
zx zx zx
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
zx zx zx zx zx
A) mitochondria, chromatin, endoplasmic reticulum zx zx zx
B) peroxisomes, lysosomes, plasma membrane zx zx zx
C) proteasomes, peroxisomes, lysosomes zx zx
D) mitochondria, endoplasmic reticulum, peroxisomes zx zx zx
E) All of the answers are correct.
zx zx zx zx zx
8. Which list has the cellular components arranged in order of INCREASING size?
zx zx zx zx zx zx zx zx zx zx zx
A) amino acid < protein < mitochondrion < ribosome
zx zx zx zx zx zx zx
B) amino acid < protein < ribosome < mitochondrion
zx zx zx zx zx zx zx
C) amino acid < ribosome < protein < mitochondrion
zx zx zx zx zx zx zx
D) protein < amino acid < mitochondrion < ribosome
zx zx zx zx zx zx zx
E) protein < ribosome < mitochondrion < amino acid
zx zx zx zx zx zx zx
9. The three-
zx
dimensional structure of macromolecules is formed and maintained primarily through
zx zx zx zx zx zx zx zx zx zx
noncovalent interactions. Which one of the following is NOT considered a noncovale
zx zx zx zx zx zx zx zx zx zx zx
nt interaction?
zx
A) carbon-carbon bonds zx
B) hydrogen bonds zx
C) hydrophobic interactions zx
D) ionic interactions zx
E) van der Waals interactions
zx zx zx
10. Which element is NOT among the four most abundant in living organisms?
zx zx zx zx zx zx zx zx zx zx zx
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page 3 zx
zx zx zx zx zx zx
lson Test Bank
zx zx
,1
Page 1
zx
,1. In a bacterial cell, the DNA is in the:
zx zx zx zx zx zx zx zx
A) cell envelope. zx
B) cell membrane. zx
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was th
zx zx zx zx zx zx zx zx zx zx zx zx
e development of:
zx zx
A) DNA.
B) photosynthetic capability. zx
C) plasma membranes. zx
D) ribosomes.
E) the nucleus. zx
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
zx zx zx zx zx zx zx zx zx zx zx
A) cell membrane. zx
B) nuclear envelope. zx
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the minimum number
zx zx zx zx zx zx zx zx zx zx zx zx zx zx zx
of biomolecules necessary for function, and on the upper end by the rate of diffusion
zx zx zx zx zx zx zx zx zx zx zx zx zx zx zx
of solutes such as oxygen. Except for highly elongated cells, they usually have lengths
zx zx zx zx zx zx zx zx zx zx zx zx zx z
and diameters in the range of:
x zx zx zx zx zx
A) 0.1 m to 10 m. zx zx zx zx
B) 0.3 m to 30 m. zx zx zx zx
C) 0.3 m to 100 m. zx zx zx zx
D) 1 m to 100 m. zx zx zx zx
E) 1 m to 300 m. zx zx zx zx
5. Which group of single-
zx zx zx
celled microorganisms has many members found growing in extreme environment
zx zx zx zx zx zx zx zx zx
s?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
zx zx zx zx zx
Page 2 zx
, 2
6. The bacterium E. coli requires simple organic molecules for growth and energy—
zx zx zx zx zx zx zx zx zx zx zx
it is therefore a:
zx zx zx
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
zx zx zx zx zx
A) mitochondria, chromatin, endoplasmic reticulum zx zx zx
B) peroxisomes, lysosomes, plasma membrane zx zx zx
C) proteasomes, peroxisomes, lysosomes zx zx
D) mitochondria, endoplasmic reticulum, peroxisomes zx zx zx
E) All of the answers are correct.
zx zx zx zx zx
8. Which list has the cellular components arranged in order of INCREASING size?
zx zx zx zx zx zx zx zx zx zx zx
A) amino acid < protein < mitochondrion < ribosome
zx zx zx zx zx zx zx
B) amino acid < protein < ribosome < mitochondrion
zx zx zx zx zx zx zx
C) amino acid < ribosome < protein < mitochondrion
zx zx zx zx zx zx zx
D) protein < amino acid < mitochondrion < ribosome
zx zx zx zx zx zx zx
E) protein < ribosome < mitochondrion < amino acid
zx zx zx zx zx zx zx
9. The three-
zx
dimensional structure of macromolecules is formed and maintained primarily through
zx zx zx zx zx zx zx zx zx zx
noncovalent interactions. Which one of the following is NOT considered a noncovale
zx zx zx zx zx zx zx zx zx zx zx
nt interaction?
zx
A) carbon-carbon bonds zx
B) hydrogen bonds zx
C) hydrophobic interactions zx
D) ionic interactions zx
E) van der Waals interactions
zx zx zx
10. Which element is NOT among the four most abundant in living organisms?
zx zx zx zx zx zx zx zx zx zx zx
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page 3 zx
