MICROBIOLOGY CHAPTER 13 TEST BANK
EXAM QUESTIONS WITH 100% COMPLETE AND
CORRECT ANSWERS/A+ GRADE/2024 VERSION
Which of the following statements provides the most significant support for the idea that viruses
are nonliving chemicals?
A) They are not composed of cells.
B) They are filterable.
C) They cannot reproduce themselves outside a host.
D) They cause diseases similar to those caused by chemicals.
E) They are chemically simple. - ✔Correct answer -They cannot reproduce themselves outside a
host
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 - ✔Correct answer -they are found only on
nonenveloped viruses
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 - ✔Correct answer -biochemical tests
, MICROBIOLOGY CHAPTER 13 TEST BANK
EXAM QUESTIONS WITH 100% COMPLETE AND
CORRECT ANSWERS/A+ GRADE/2024 VERSION
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 - ✔Correct answer -culture media
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 - ✔Correct answer -biosynthesis
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. - ✔Correct answer -phage DNA is incorporated into host cell
DNA
, MICROBIOLOGY CHAPTER 13 TEST BANK
EXAM QUESTIONS WITH 100% COMPLETE AND
CORRECT ANSWERS/A+ GRADE/2024 VERSION
A viroid is a(n)
A) complete, infectious virus particle.
B) infectious piece of RNA without a capsid.
C) capsid without nucleic acid.
D) provirus.
E) infectious protein. - ✔Correct answer -infectious piece of RNA without a capsid
In Figure 13.1, which structure is a complex virus?
A) a (3D diamond looking thing)
B) b (looks like a spider)
C) c (2D diamond with loopdiloops)
D) d (spiral)
E) All of the structures are complex viruses. - ✔Correct answer -b
The structures illustrated in Figure 13.1 are composed of
A) DNA.
B) RNA.
C) DNA or RNA.
D) Capsomeres.
E) viroids. - ✔Correct answer -viroids
EXAM QUESTIONS WITH 100% COMPLETE AND
CORRECT ANSWERS/A+ GRADE/2024 VERSION
Which of the following statements provides the most significant support for the idea that viruses
are nonliving chemicals?
A) They are not composed of cells.
B) They are filterable.
C) They cannot reproduce themselves outside a host.
D) They cause diseases similar to those caused by chemicals.
E) They are chemically simple. - ✔Correct answer -They cannot reproduce themselves outside a
host
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 - ✔Correct answer -they are found only on
nonenveloped viruses
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 - ✔Correct answer -biochemical tests
, MICROBIOLOGY CHAPTER 13 TEST BANK
EXAM QUESTIONS WITH 100% COMPLETE AND
CORRECT ANSWERS/A+ GRADE/2024 VERSION
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 - ✔Correct answer -culture media
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 - ✔Correct answer -biosynthesis
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. - ✔Correct answer -phage DNA is incorporated into host cell
DNA
, MICROBIOLOGY CHAPTER 13 TEST BANK
EXAM QUESTIONS WITH 100% COMPLETE AND
CORRECT ANSWERS/A+ GRADE/2024 VERSION
A viroid is a(n)
A) complete, infectious virus particle.
B) infectious piece of RNA without a capsid.
C) capsid without nucleic acid.
D) provirus.
E) infectious protein. - ✔Correct answer -infectious piece of RNA without a capsid
In Figure 13.1, which structure is a complex virus?
A) a (3D diamond looking thing)
B) b (looks like a spider)
C) c (2D diamond with loopdiloops)
D) d (spiral)
E) All of the structures are complex viruses. - ✔Correct answer -b
The structures illustrated in Figure 13.1 are composed of
A) DNA.
B) RNA.
C) DNA or RNA.
D) Capsomeres.
E) viroids. - ✔Correct answer -viroids
