A Microbiology Knowledge Test About Viruses

39 Questions | By Alfredhook3 | Updated: Mar 22, 2022 | Attempts: 559

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A Microbiology Knowledge Test About Viruses - Quiz

Microbiology is a study field of various microorganisms, collectively known as microbes. These can range from various viruses to bacteria, fungi, protozoa, etc. This test is particularly based on viruses and the diseases or syndromes caused by them. So, how much do you know about this field? Take this test and see for yourself!

Questions and Answers

1.

...................discovered an animal virus causes foot and mouth disease in cattle.
- A.
  
  Ivanovski and Beijerinck
- B.
  
  Loeffler and Frosch
- C.
  
  Pasteur
2.

.........................showed that a disease in tobacco was caused by a virus.
- A.
  
  Ivanovski and Beijerinck
- B.
  
  Loeffler and Frosch
3.

Viruses range in size from:
- A.
  
  400-1000 nm
- B.
  
  10-100 μm
- C.
  
  400-1000 nm
- D.
  
  20-450 nm
4.

Smallest viruses are .......... which are around 20 nm in diameter.
- A.
  
  Parvoviruses
- B.
  
  mimiviruses
5.

Largest viruses are .......... which are around 450 nm in diameter.
- A.
  
  Parvoviruses
- B.
  
  Mimiviruses
6.

A fully formed virus that is able to establish an infection in a host cell:
- A.
  
  Virion
- B.
  
  Prion
- C.
  
  Bacteriaphage
7.

Naked viruses consist only of a nucleocapsid
- A.
  
  True
- B.
  
  False
8.

A common polyhedral capsid shape of viruses is a:
- A.
  
  Icosahedron
- B.
  
  Pentagon
- C.
  
  Helical
- D.
  
  Pyramid
9.

Which of the following virus is a naked virus and has a helical structure?
- A.
  
  TMV
- B.
  
  Influenza
- C.
  
  Measles
- D.
  
  Rabies
10.

Which of the following virus is helical and has an enveloped?
- A.
  
  Measles
- B.
  
  Influenza
- C.
  
  Rabies
- D.
  
  All the above
11.

Which of the following viruses are Icosahedral with an enveloped?
- A.
  
  Hep B
- B.
  
  Herpes virus
- C.
  
  A and B
- D.
  
  None of the above
12.

The envelope of a virus is derived from the host’s...
- A.
  
  Genome
- B.
  
  Cell membrane, nuclear envelope or endoplasmic reticulum
- C.
  
  Cytoplasm
- D.
  
  Glycoprotein
13.

Hep B carry
- A.
  
  4 genes
- B.
  
  100 of genes
14.

Herpes virus carry
- A.
  
  100 genes
- B.
  
  4 genes
15.

A positive-strand RNA virus:
- A.
  
  Must first be converted to a mRNA before it can be translated.
- B.
  
  Can be used directly to translate viral proteins.
- C.
  
  Is not recognized by host ribosomes.
- D.
  
  Will be degraded by host enzymes.
16.

A negative sense /strand RNA virus
- A.
  
  Must be converted to positive strand/sense to make mRNA
- B.
  
  Can be used directly to translate viral proteins.
- C.
  
  Must first be converted to a mRNA before it can be translated.
- D.
  
  None of the above
17.

Enveloped viruses can bud from:
- A.
  
  Nuclear envelope
- B.
  
  Endoplasmic reticulum
- C.
  
  Cell membrane
- D.
  
  All the above
18.

A virus obtains its envelope during which of the following phases?
- A.
  
  Attachment
- B.
  
  Penetration
- C.
  
  Assembly
- D.
  
  Release
19.

How long does it take for rubella syndrome to occur?
- A.
  
  First trimester
- B.
  
  Second trimester
- C.
  
  Third trimester
- D.
  
  None of the above
20.

Blueberry Muffin Syndrome is a rare neonatal skin disorder caused by
- A.
  
  Rubella virus
- B.
  
  Measles
- C.
  
  Mumps
21.

Centripetal rash appearing initially on the extremities. and spreading to back, torso, and face, but sparing palms, soles, genitalia, and mucous membranes is seen in infection cause by –
- A.
  
  Rubella
- B.
  
  Varicella zoster virus (chicken pox)
- C.
  
  Mumps
- D.
  
  Measles
22.

Why chicken pox need a double dose?
- A.
  
  Because it’s a live vaccine
- B.
  
  Doesnt need a double dose
- C.
  
  None of the above
23.

Hep D causes coinfection with Hep B because Hep D alone cant cause the disease
- A.
  
  True
- B.
  
  False
24.

Which of the following is NOT a cytopathic effect?
- A.
  
  Transformation
- B.
  
  Cell fusion
- C.
  
  Mononucleated cell
- D.
  
  Inclusion bodies
25.

Which of the following does a virus lack? Select all that apply.
- A.
  
  Ribosomes
- B.
  
  Metabolic processes
- C.
  
  Nucleic acid
- D.
  
  Glycoprotein
- E.
  
  Both A and B