HESI MICROBIOLOGY CHAPTER 13 TEST
BANK EXAM 2024-2025 69 QUESTIONS
WELL ANSWERED AND GRADED
A+|NEWEST EXAM!!
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. - ANSWERS -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 - ANSWERS -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 - ANSWERS -biochemical tests
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 - ANSWERS -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 - ANSWERS -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. - ANSWERS -phage DNA is incorporated into host cell DNA
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. - ANSWERS -infectious piece of RNA without a capsid
BANK EXAM 2024-2025 69 QUESTIONS
WELL ANSWERED AND GRADED
A+|NEWEST EXAM!!
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. - ANSWERS -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 - ANSWERS -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 - ANSWERS -biochemical tests
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 - ANSWERS -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 - ANSWERS -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. - ANSWERS -phage DNA is incorporated into host cell DNA
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. - ANSWERS -infectious piece of RNA without a capsid
