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Microorganisms and Disease.General Knowledge Trivia@19

How well You Know About Microbes.? Microorganisms and Disease. 8 Questions.

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Question 1 Photo

Which of the following characteristic of the Rotavirus was important for the construction of the Rotashield vaccine?

  • A limited number of capsule types
  • The possession of a segmented RNA genome
  • The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings
  • The ability of the Rotavirus to be transmitted faster

Question 2 Photo

Plastic implants can pose a serious nosocomial infection problem because:

  • Phagocytes have trouble moving on the plastic surface
  • Phagocytes have trouble engulfing bacteria embedded in a biofilm
  • Infected implants usually have to be surgically removed
  • All of the above

Question 3 Photo

The nature of the poliovirus gives for oral vaccination (satin vaccine) as part of the eradication programme is:

  • Live attenuated strains of all three immunological types
  • Small dosage of wild-type live viruses
  • Heat killed virus
  • Formalin-inactivated viruses

Question 4 Photo

Which of the following is true regarding anthrax?

  • Anthrax is caused by a virus
  • Anthrax is highly contagious
  • Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis
  • Inhalation Anthrax requires infection with a large number of spores

Question 5 Photo

The toxins produced by bacteria:

  • Kill viruses
  • Encourage bacterial reproduction
  • Interfere with physiological processes in the body
  • All of the above

Question 6 Photo

Both Mycobacterium tuberculosis and Streptococcus pneumoniae:

  • Are acquired by inhalation
  • Have cell walls that contain a high content of mycolic acids
  • Have polysaccharide capsules
  • Stay in the lung and rarely, if ever, enter the bloodstream

Question 7 Photo

Cholera toxin is an A-B type toxin in which the B portions bind to a receptor on a host cell and the A portion enters the cell to cause:

  • ADP ribosylation of adenylate cyclase that stops production of cAMP
  • ADP ribosylation of guanylate cyclase that stimulates production of cGMP
  • ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP
  • Cleavage of rRNA that results in disruption of ribosome function

Question 8 Photo

The agent responsible for causing mad cow disease is thought to be a:

  • Protozoan
  • Fungus
  • Prion
  • Virus