Otázky s chybnou odpovědí, č.j. 2032261
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TEST:autumn12  Varianta:9         Tisknuto:17/12/2019
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  4. ( 23.orig.) E. coli-labile toxin and cholera toxin
 3) + ADP-ribosylate a G-protein, which as a result constantly activates adenylate cyclase. (nezaškrtl-a)
 4) - ADP-ribosylate cAMP, which as a result cannot activate protein kinase A. (zaškrtl-a)
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 20. ( 17.orig.) Which type of genetic exchange in bacteria is susceptible to the activity of deoxyribonuclease?
 1) - Transduction (zaškrtl-a)
 3) + Transformation (nezaškrtl-a)
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 27. (  1.orig.) In microdilution testing, if MIC Value > breakpoint;
 1) + Strain is resistant (nezaškrtl-a)
 3) - Strain is suceptible (zaškrtl-a)
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 34. ( 22.orig.) Fresh cell-culture media and media that a bacterial strain was grown in are injected separately into different mice. Only the mice that received the bacterial-exposed media become ill, but this effect is negated by first treating the media with a proteinase. This finding suggests that
 1) - the bacteria secrete a non-protein exotoxin. (zaškrtl-a)
 3) + the bacteria secrete a protein exotoxin. (nezaškrtl-a)
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 37. ( 12.orig.) Which of the following cell types is considered a professional antigen-presenting cell? 
 1) + macrophage (nezaškrtl-a)
 2) + dendritic cell (nezaškrtl-a)
 4) + B cell (nezaškrtl-a)
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 43. ( 25.orig.) Biochemical mechanisms occurring in bacterial resistance include:
 3) + The development of alternative biochemical pathways. (nezaškrtl-a)
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 57. (  2.orig.) Periplasmic space of gram-negative bacteria
 1) + refers to a space between an outer membrane and peptigoglycan layer (nezaškrtl-a)
 2) - is a spece between the peptigoglycan layer and the cytoplasmic membrane (zaškrtl-a)
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 59. (  7.orig.) Which is true for endotoxins? 
 1) - Highly toxic and fatal in microgram quantities (zaškrtl-a)
 2) - Usually binds to specific cellular receptors (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) - superantigen (zaškrtl-a)
 3) + exotoxin (nezaškrtl-a)
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TEST:autumn2  Varianta:9         Tisknuto:17/12/2019
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  2. ( 27.orig.) Causes of bacterial meningitis in neonates include:
 2) + Streptococcus pneumoniae(nezaškrtl-a)
 4) + Escherichia coli(nezaškrtl-a)
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  6. (  4.orig.) Puerperal fever is a streptococcal infection of the
 2) + uterus (nezaškrtl-a)
 3) - kidney (zaškrtl-a)
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 10. ( 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
 3) + Vibrio vulnificus(nezaškrtl-a)
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 14. (  6.orig.) A positive Mantoux test indicates an area of induration of
 1) + 10 mm or more in diameter (nezaškrtl-a)
 3) - 4-9 mm in diameter (zaškrtl-a)
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 15. ( 31.orig.) Ophthalmia neonatorum is caused by: 
 2) - Neisseria meningitidis(zaškrtl-a)
 4) + Neisseria gonorrhoeae(nezaškrtl-a)
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 16. ( 18.orig.) All of the following are pneumococcal diseases EXCEPT:
 2) + glomerulonephritis (nezaškrtl-a)
 3) - meningitis (zaškrtl-a)
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 17. ( 17.orig.) Which of the following is associated with dental caries?
 2) + viridans streptococci (nezaškrtl-a)
 4) - Klebsiella oxytoca(zaškrtl-a)
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 18. ( 14.orig.) Which is the most common form of anthrax? 
 2) - Inhalation anthrax (zaškrtl-a)
 3) + Cutaneous anthrax (nezaškrtl-a)
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 19. ( 20.orig.) Bacteria commonly acquired from animals include
 1) + Listeria monocytogenes(nezaškrtl-a)
 2) - Legionella pneumophila(zaškrtl-a)
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 21. ( 39.orig.) Cholera toxin
 2) - inactivates adenylate cyclase (zaškrtl-a)
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 23. ( 13.orig.) Food most often associated with emetic type of food poisoning caused by Bacillus cereus, is
 2) - Meat (zaškrtl-a)
 3) + Rice (nezaškrtl-a)
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 33. ( 22.orig.) Neisseria meningitidis is a serious cause of bacterial infection which
 2) + Can result in Waterhouse-Friderichsen syndrome (nezaškrtl-a)
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 35. ( 35.orig.) Pseudomonas aeruginosa can be diagnosed from the pigment, known as
 1) + Pyorubrin (nezaškrtl-a)
 2) + Pyocyanin (nezaškrtl-a)
 4) + Pyomelanin (nezaškrtl-a)
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 39. ( 30.orig.) Which of the following statements is/are true about Haemophilus influenzae b (Hib) vaccine:
 3) + Has been conjugated with either non-toxic variant of diphtheria vaccine or tetanus toxoid (nezaškrtl-a)
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 42. ( 12.orig.) Identify the bacteria which is (are) oxidase-positive?
 2) + Neisseria(nezaškrtl-a)
 3) - Staphylococcus(zaškrtl-a)
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 45. ( 15.orig.) Inactivated viral vaccines are available for
 4) + influenza (nezaškrtl-a)
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 49. (  1.orig.) Regarding the effect of benzylpenicillin (penicillin G) on bacteria, which one of the following organisms is LEAST likely to be resistant?
 1) + Streptococcus pyogenes(nezaškrtl-a)
 2) - Enterococcus faecalis(zaškrtl-a)
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 52. ( 29.orig.) Which of the following is/are true about Diphtheria:
 2) - Corynebacterium diphtheriae is the only bacterium causing diphtheria (zaškrtl-a)
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 54. ( 28.orig.) Neisseria meningitis
 2) - Is a heterotrophic gram-positive diplococcus (zaškrtl-a)
 4) + It exists as normal flora in the nasopharynx of up to 5-15% of adults. (nezaškrtl-a)
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 55. ( 33.orig.) Which type of Escherichia coli infection can be severe with life-threatening consequences such as hemolytic uremic syndrome? 
 3) - EIEC (zaškrtl-a)
 4) + EHEC (nezaškrtl-a)
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 56. (  2.orig.) Which of the following microorganism causes lesions in the form of abscesses?
 2) - Bacillus anthracis(zaškrtl-a)
 4) + Staphylococcus aureus(nezaškrtl-a)
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 58. ( 36.orig.) Which of the following infection(s) can be caused by Pseudomonas aeruginosa?
 2) + Wound and burn infection (nezaškrtl-a)
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 62. ( 32.orig.) Which of the following bacteria has the lowest 50% infective dose (ID50)?
 2) + Shigella sonnei(nezaškrtl-a)
 4) - Salmonella typhi(zaškrtl-a)
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 64. ( 37.orig.) The substance(s) which can be produced by strains of Pseudomonas aeruginosa is/are
 2) + Haemolysins (nezaškrtl-a)