Virology Slide 1-100

238 Questions | By Kbounds | Updated: Mar 21, 2022 | Attempts: 494

Questions

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A test that queries various random questions that are designed to test your knowledge on a specific subject matter like viruses. It might not be as easy as you think but just try it out to see how you will do.

Questions and Answers

1.

Which of the following viruses are DNA viruses?
- A.
  
  Pox
- B.
  
  Retro
- C.
  
  Corona
- D.
  
  Hepadna
- E.
  
  Herpes
2.

Which of the following viruses are RNA viruses?
- A.
  
  Entero
- B.
  
  Paramyxo
- C.
  
  Papilloma
- D.
  
  Parvo
- E.
  
  Orthomyxo
3.

What is the name of the membrane surrounding the virus core?
- A.
  
  Envelope
- B.
  
  Capsid
- C.
  
  Plasma membrane
- D.
  
  Capsule
4.

What is the name for the major protein component of the shell of the core?
5.

Viruses are considered ______
- A.
  
  Smallest of all self-replicating organisms
- B.
  
  Obligate intracellular parasites
- C.
  
  Filterable infectious agents
6.

Viruses always contain DNA as their genetic material.
- A.
  
  True
- B.
  
  False
7.

Viruses use their protein synthesis machinery to synthesize proteins using host molecules.
- A.
  
  True
- B.
  
  False
8.

Which of the following is NOT a viral host?
- A.
  
  Bacteria
- B.
  
  Protozoa
- C.
  
  Fungi
- D.
  
  Algae
- E.
  
  All of the above are viral hosts
9.

What is the name for the smallest virus?
10.

What is the name for the largest virus?
11.

Which is NOT a viral structure?
- A.
  
  Helical
- B.
  
  Hexagonal
- C.
  
  Ovoid
- D.
  
  Icosahedral
12.

The cells, tissues, species that a virus can productively infect is called _____
13.

The capacity of a cell, tissue, or species to support virus replication is called _____
14.

The ability of a virus to infect a host is determined by what?
- A.
  
  Host cell receptor availability
- B.
  
  Presence of intracellular host cell factors
- C.
  
  Similarities between the host cell membranes and the viral membranes
- D.
  
  Host immune responses
15.

The purpose of this structure is to form a stable protective shell for the genome.
16.

What is the name for the discrete substructure of the virion which contains a nucleic acid-protein assembly package?
17.

An icosahedral structure contains which of the following?
- A.
  
  5-fold axis of symmetry
- B.
  
  4-fold axis of symmetry
- C.
  
  3-fold axis of symmetry
- D.
  
  2-fold axis of symmetry
18.

How many vertices does the icosahedron contain?
19.

How many triangular faces does the icosahedron contain?
20.

A host cell-derived lipid bilayer carrying viral glycoproteins that forms the outer layer of a virus particle.
21.

Most viruses acquire their membrane by forming a lipid bilayer from their glycoproteins.
- A.
  
  True
- B.
  
  False
22.

Viral envelope proteins are targeted to the appropriate membrane during translation.
- A.
  
  True
- B.
  
  False
23.

Enveloped viruses enter the host via which mechanism of entry?
- A.
  
  Fusion with the plasma membrane
- B.
  
  Endocytosis
- C.
  
  Penetration through plasma membrane
24.

Non-enveloped viruses enter the host via which entry mechanism?
- A.
  
  Fusion with plasma membrane
- B.
  
  Endocytosis
- C.
  
  Penetration through plasma membrane
25.

In viral endocytosis, what causes the conformation change which releases the virus from the endosome into the cytosol?