Chapter 13 Viruses, Viroids, and Prions
13.1 Multiple-Choice Questions
1) How do all viruses differ from bacteria? A) Viruses are filterable.
B) Viruses are obligate intracellular parasites. C) Viruses do not have any nucleic acid.
D) Viruses are not composed of cells.
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E) Viruses do not reproduce. Answer: D
Section: 13.1
Bloom's Taxonomy: Remembering
ASMcue Outcome: 4.4
Learning Outcome: 13.1
2) A feature that may be found in viruses but never in bacteria is
A) the ability to pass through 0.22 micrometer pore filters. B) may contain an RNA genome.
C) they cannot reproduce themselves outside a host. D) a sensitivity to antibiotics.
E) an ability to infect more than one type of host. Answer: B
Section: 13.1
Bloom's Taxonomy: Analyzing
ASMcue Outcome: 4.4
Learning Outcome: 13.1
Global Outcome: 2
3) Which of the following statements about viral spikes is FALSE? A) They are composed of
carbohydrate-protein complexes.
B) They are used for attachment.
C) They may cause hemagglutination.
D) They bind to receptors on the host cell surface. E) They are found only on nonenveloped
viruses. Answer: E
Section: 13.2
Bloom's Taxonomy: Remembering
ASMcue Outcome: 2.5
Learning Outcome: 13.2
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4) Which of the following is NOT used as a criterion to classify viruses? A) biochemical
tests
B) morphology C) nucleic acid D) size
E) number of capsomeres
Answer: A Section: 13.2
Bloom's Taxonomy: Understanding
Learning Outcome: 13.2
5) Which of the following is NOT utilized to culture viruses? A) laboratory animals
B) culture media
C) embryonated eggs D) animal cell cultures E) bacterial cultures Answer: B
Section: 13.4
Bloom's Taxonomy: Remembering
ASMcue Outcome: 4.4
Learning Outcome: 13.5
6) Bacteriophages and animal viruses do NOT differ significantly in which one of the
following steps? A) attachment
B) penetration
C) uncoating
D) biosynthesis E) release Answer: D Section: 13.5
Bloom's Taxonomy: Analyzing
ASMcue Outcome: 4.4
Learning Outcome: 13.8
Global Outcome: 2
7) The definition of lysogeny is
A) phage DNA is incorporated into host cell DNA. B) lysis of the host cell due to a phage.
C) the period during replication when virions are not present. D) when the burst time takes an
unusually long time.
E) attachment of a phage to a cell. Answer: A
Section: 13.5
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13.1 Multiple-Choice Questions
1) How do all viruses differ from bacteria? A) Viruses are filterable.
B) Viruses are obligate intracellular parasites. C) Viruses do not have any nucleic acid.
D) Viruses are not composed of cells.
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E) Viruses do not reproduce. Answer: D
Section: 13.1
Bloom's Taxonomy: Remembering
ASMcue Outcome: 4.4
Learning Outcome: 13.1
2) A feature that may be found in viruses but never in bacteria is
A) the ability to pass through 0.22 micrometer pore filters. B) may contain an RNA genome.
C) they cannot reproduce themselves outside a host. D) a sensitivity to antibiotics.
E) an ability to infect more than one type of host. Answer: B
Section: 13.1
Bloom's Taxonomy: Analyzing
ASMcue Outcome: 4.4
Learning Outcome: 13.1
Global Outcome: 2
3) Which of the following statements about viral spikes is FALSE? A) They are composed of
carbohydrate-protein complexes.
B) They are used for attachment.
C) They may cause hemagglutination.
D) They bind to receptors on the host cell surface. E) They are found only on nonenveloped
viruses. Answer: E
Section: 13.2
Bloom's Taxonomy: Remembering
ASMcue Outcome: 2.5
Learning Outcome: 13.2
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4) Which of the following is NOT used as a criterion to classify viruses? A) biochemical
tests
B) morphology C) nucleic acid D) size
E) number of capsomeres
Answer: A Section: 13.2
Bloom's Taxonomy: Understanding
Learning Outcome: 13.2
5) Which of the following is NOT utilized to culture viruses? A) laboratory animals
B) culture media
C) embryonated eggs D) animal cell cultures E) bacterial cultures Answer: B
Section: 13.4
Bloom's Taxonomy: Remembering
ASMcue Outcome: 4.4
Learning Outcome: 13.5
6) Bacteriophages and animal viruses do NOT differ significantly in which one of the
following steps? A) attachment
B) penetration
C) uncoating
D) biosynthesis E) release Answer: D Section: 13.5
Bloom's Taxonomy: Analyzing
ASMcue Outcome: 4.4
Learning Outcome: 13.8
Global Outcome: 2
7) The definition of lysogeny is
A) phage DNA is incorporated into host cell DNA. B) lysis of the host cell due to a phage.
C) the period during replication when virions are not present. D) when the burst time takes an
unusually long time.
E) attachment of a phage to a cell. Answer: A
Section: 13.5
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