Question 1

Viruses ________.

Accepted Answer

A)   cannot be seen in a light microscope
B)   are prokaryotic
C)   contain 70S ribosomes
D)   undergo binary fission
E)   All of the choices are correctF) C) and D)
G) None of the above

Question 2

The patient asks the RN how she contracted this viral infection since she has not come in contact with anyone with anyone infected with shingles. Which of the following statements is an appropriate response?

Accepted Answer

A)   Varicella zoster virus can remain in a chronic latent state by integrating into a bacteriophage.
B)   Varicella zoster virus can remain in a chronic latent state by turning on oncogenes.
C)   Varicella zoster virus can remain in a chronic latent state by attacking T cells.
D)   Varicella zoster virus can hide from the immune system within nerve cells.E) None of the above
F) A) and C)

Question 3

A negative-sense RNA virus ________.

Accepted Answer

A)   is ready for immediate translation
B)   must synthesize a negative RNA copy of its genome
C)   must synthesize a positive RNA copy of its genome
D)   is a special form of tRNA used by viruses
E)   always codes for RNA polymeraseF) B) and C)
G) C) and D)

Question 4

A fully formed virus that can cause an infection in a host cell is called a virion.

Accepted Answer

A) True 
 B)False

Question 5

Oncoviruses include all the following except ________.

Accepted Answer

A)   hepatitis B virus
B)   measles virus
C)   papillomavirus
D)   HTLV I
E)   Epstein-Barr virusF) A) and E)
G) None of the above

Question 6

T-even phages ________.

Accepted Answer

A)   include the poxviruses
B)   infect Escherichia coli cells
C)   enter host cells by engulfment
D)   have helical capsids
E)   All of the choices are correctF) B) and D)
G) A) and E)

Question 7

Uncoating of viral nucleic acid ________.

Accepted Answer

A)   does not occur in bacteriophage multiplication
B)   involves enzymatic destruction of the capsid
C)   releases viral nucleic acid into the cell
D)   occurs before replication
E)   All of the choices are correctF) C) and D)
G) A) and C)

Question 8

Viruses are not filterable.

Accepted Answer

A) True 
 B)False

Question 9

When a bacterium acquires a trait from its temperate phage, it is called ________.

Accepted Answer

A)   transformation
B)   lysogenic conversion
C)   viral persistence
D)   transcription
E)   translationF) B) and C)
G) C) and D)

Question 10

Host range is limited by ________.

Accepted Answer

A)   type of nucleic acid in the virus
B)   age of the host cell
C)   type of host cell receptors on cell membrane
D)   size of the host cell
E)   All of the choices are correctF) A) and E)
G) A) and B)

Question 11

Viruses attach to their hosts via ________.

Accepted Answer

A)   host glycoproteins
B)   host phospholipids
C)   viral phospholipids
D)   viral flagella
E)   All of the choices are correctF) D) and E)
G) All of the above

Question 12

Which of the following is the priority intervention to prevent the spread of shingles to other residents of the facility?

Accepted Answer

A)   Institute droplet precautions for the patient.
B)   Perform wound care twice a day.
C)   Observe strict hand hygiene practices.
D)   Administer antivirals as soon as possible.E) B) and C)
F) All of the above

Question 13

The process of dissolving the envelope and capsid to release the viral nucleic acid is ________.

Accepted Answer

A)   adsorption
B)   penetration
C)   uncoating
D)   synthesis
E)   assemblyF) A) and E)
G) B) and D)

Question 14

Infectious protein particles are called ________.

Accepted Answer

A)   viroids
B)   phages
C)   prions
D)   oncogenic viruses
E)   spikesF) C) and D)
G) None of the above

Question 15

A specific animal virus has the ability to attach to and enter almost any animal host cell.

Accepted Answer

A) True 
 B)False

Question 16

Prophages can be activated into viral replication and enter the lytic cycle.

Accepted Answer

A) True 
 B)False

Question 17

Glycoprotein spikes are essential for mediating the release stage of the viral life cycle.

Accepted Answer

A) True 
 B)False

Question 18

Viruses that infect bacteria are specifically called ________.

Accepted Answer

A)   viroids
B)   prions
C)   bacteriophages
D)   satellite viruses
E)   All of the choices infect bacteria.F) A) and E)
G) None of the above

Question 19

Two noncellular agents, smaller than viruses, are the infectious proteins called ________ and the infectious RNA strands called ________.

Accepted Answer

A)   prions; capsomeres
B)   virions; prions
C)   viroids; phages
D)   prions; phages
E)   prions; viroidsF) A) and D)
G) C) and E)

Question 20

Which of the following is not associated with every virus?

Accepted Answer

A)   Envelope
B)   Capsomeres
C)   Capsid
D)   Nucleic acid
E)   GenomeF) C) and D)
G) B) and E)

Exam 5: Viral Structure and Multiplication

A specific animal virus has the ability to attach to and enter almost any animal host cell.

Correct AnswerverifiedShow Answer

Infectious protein particles are called ________.

Correct AnswerverifiedShow Answer

The process of dissolving the envelope and capsid to release the viral nucleic acid is ________.

Correct AnswerverifiedShow Answer

Oncoviruses include all the following except ________.

Correct AnswerverifiedShow Answer

A negative-sense RNA virus ________.

Correct AnswerverifiedShow Answer

Host range is limited by ________.

Correct AnswerverifiedShow Answer

A fully formed virus that can cause an infection in a host cell is called a virion.

Correct AnswerverifiedShow Answer

Viruses are not filterable.

Correct AnswerverifiedShow Answer

Two noncellular agents, smaller than viruses, are the infectious proteins called ________ and the infectious RNA strands called ________.

Correct AnswerverifiedShow Answer

When a bacterium acquires a trait from its temperate phage, it is called ________.

Correct AnswerverifiedShow Answer

Which of the following is not associated with every virus?

Correct AnswerverifiedShow Answer

Glycoprotein spikes are essential for mediating the release stage of the viral life cycle.

Correct AnswerverifiedShow Answer

Viruses that infect bacteria are specifically called ________.

Correct AnswerverifiedShow Answer

Uncoating of viral nucleic acid ________.

Correct AnswerverifiedShow Answer

T-even phages ________.

Correct AnswerverifiedShow Answer

The patient asks the RN how she contracted this viral infection since she has not come in contact with anyone with anyone infected with shingles. Which of the following statements is an appropriate response?

Correct AnswerverifiedShow Answer

Viruses attach to their hosts via ________.

Correct AnswerverifiedShow Answer

Prophages can be activated into viral replication and enter the lytic cycle.

Correct AnswerverifiedShow Answer

Viruses ________.

Correct AnswerverifiedShow Answer

Which of the following is the priority intervention to prevent the spread of shingles to other residents of the facility?

Correct AnswerverifiedShow Answer

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Two noncellular agents, smaller than viruses, are the infectious proteins called and the infectious RNA strands called .

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