Otázky s chybnou odpovědí, č.j. 6660214
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TEST:autumn12  Varianta:0         Tisknuto:17/12/2019
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  8. ( 24.orig.) Microbial exotoxins posses which of the following activities?
 1) + all of the above (nezaškrtl-a)
 2) - disruption of host-cell membranes (zaškrtl-a)
 4) - disruption of host-cell second messenger signaling pathways (zaškrtl-a)
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 15. ( 20.orig.) Extracellular pathogens can attempt to avoid immune detection by
 2) - inhibiting phagosome-lysosome fusion (zaškrtl-a)
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 23. (  7.orig.) Which is true for endotoxins? 
 2) + Found only in Gram-negative bacteria (nezaškrtl-a)
 3) - Highly toxic and fatal in microgram quantities (zaškrtl-a)
 4) - Toxoids are used to immunize (zaškrtl-a)
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 24. ( 21.orig.) A gene coding for which of the following proteins is likely to be found in a genomic island of a pathogenic bacterial strain and not found in a non-pathogenic strain?
 1) + host cell attachment protein (nezaškrtl-a)
 3) - tRNA amino acyl synthase protein (zaškrtl-a)
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 30. ( 15.orig.) Which of the following best explains the reaction that takes place in the latex agglutination slide test for CRP?
 3) + Latex particles are coated with anti-CRP (nezaškrtl-a)
 4) - CRP is acting as an antibody (zaškrtl-a)
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 36. (  3.orig.) The process by which any bacterial gene can be packaged inside a phage particle and then introduced into another bacterium by infection of that cell with the phage, leading to a change in a phenotype of the recipient cell, is called
 2) - transformation (zaškrtl-a)
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 46. ( 14.orig.) Which of the following is able to activate complement?
 1) - IgD (zaškrtl-a)
 2) - IgA (zaškrtl-a)
 3) - IgE (zaškrtl-a)
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 51. ( 12.orig.) Which of the following cell types is considered a professional antigen-presenting cell? 
 3) + macrophage (nezaškrtl-a)
 4) + B cell (nezaškrtl-a)
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 61. (  8.orig.) MMR vaccine for the prevention of virus infections protects against:
 3) + measles virus (nezaškrtl-a)
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 64. (  1.orig.) In microdilution testing, if MIC Value > breakpoint;
 1) + Strain is resistant (nezaškrtl-a)
 2) - Strain is suceptible (zaškrtl-a)
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 65. ( 18.orig.) You have recently identified a new toxin. It is produced by a gram-negative bacterium. It is composed mostly of protein, has high toxicity, and is not heat stable. You also discover that it targets liver cells. Based on these characteristics, how would you classify this toxin?
 1) - endotoxin (zaškrtl-a)
 2) + exotoxin (nezaškrtl-a)
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TEST:autumn2  Varianta:0         Tisknuto:17/12/2019
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  1. ( 20.orig.) Bacteria commonly acquired from animals include
 1) - Legionella pneumophila(zaškrtl-a)
 3) + Listeria monocytogenes(nezaškrtl-a)
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  9. ( 25.orig.) A 8 year old girl was playing in a slowly moving stream when she cut her foot on a sharp object. Three days later she was brought to the emergency room of Tribhuvan University Teaching Hospital hospital because of pain and swelling at the site of the wound and drainage of pus from it. The most likely cause of the infection is
 2) + Vibrio vulnificus(nezaškrtl-a)
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 13. ( 15.orig.) Inactivated viral vaccines are available for
 1) + influenza (nezaškrtl-a)
 2) - mumps (zaškrtl-a)
 3) + hepatitis A  (nezaškrtl-a)
 4) - measles (zaškrtl-a)
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 14. (  1.orig.) Regarding the effect of benzylpenicillin (penicillin G) on bacteria, which one of the following organisms is LEAST likely to be resistant?
 2) - Staphylococcus aureus(zaškrtl-a)
 3) + Streptococcus pyogenes(nezaškrtl-a)
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 20. ( 28.orig.) Neisseria meningitis
 1) + Is a heterotrophic gram-negative diplococcus (nezaškrtl-a)
 4) + It exists as normal flora in the nasopharynx of up to 5-15% of adults. (nezaškrtl-a)
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 25. ( 14.orig.) Which is the most common form of anthrax? 
 2) - Inhalation anthrax (zaškrtl-a)
 4) + Cutaneous anthrax (nezaškrtl-a)
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 27. ( 32.orig.) Which of the following bacteria has the lowest 50% infective dose (ID50)?
 1) + Shigella sonnei(nezaškrtl-a)
 4) - Vibrio cholerae(zaškrtl-a)
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 28. ( 22.orig.) Neisseria meningitidis is a serious cause of bacterial infection which
 3) + Can result in septicaemia (nezaškrtl-a)
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 37. (  6.orig.) A positive Mantoux test indicates an area of induration of
 1) + 10 mm or more in diameter (nezaškrtl-a)
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 38. ( 27.orig.) Causes of bacterial meningitis in neonates include:
 3) + Streptococcus pneumoniae(nezaškrtl-a)
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 50. ( 37.orig.) The substance(s) which can be produced by strains of Pseudomonas aeruginosa is/are
 1) + Haemolysins (nezaškrtl-a)
 2) + Elastase (nezaškrtl-a)
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 56. ( 16.orig.) Which of the following can be caused by either a bacterial or viral infection?
 1) - leprosy (zaškrtl-a)
 3) - anthrax (zaškrtl-a)
 4) - impetigo (zaškrtl-a)
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 58. ( 35.orig.) Pseudomonas aeruginosa can be diagnosed from the pigment, known as
 1) + Pyomelanin (nezaškrtl-a)
 3) + Pyorubrin (nezaškrtl-a)