Otázky s chybnou odpovědí, č.j. 7415397
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TEST:autumn12  Varianta:5         Tisknuto:17/12/2019
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  4. (  4.orig.) All of the following compounds are found in the cell wall of certain bacteria EXCEPT
 2) - N-acetylglucosamine (zaškrtl-a)
 4) + chitin (nezaškrtl-a)
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  6. ( 25.orig.) Biochemical mechanisms occurring in bacterial resistance include:
 2) + Modi?cations to cell wall permeability. (nezaškrtl-a)
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 13. (  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
 1) + transduction (nezaškrtl-a)
 4) - transfection (zaškrtl-a)
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 14. (  9.orig.) Bacterial H antigen is derived from
 1) + flagellin (nezaškrtl-a)
 2) - haptenic oligosaccharide (zaškrtl-a)
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 17. (  6.orig.) Beta-lactam antibiotics are correctly described as all of the following EXCEPT
 2) + potent antimycotic agents (nezaškrtl-a)
 3) - those having a low toxicity (zaškrtl-a)
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 18. ( 11.orig.) Complement component C3b:
 1) - Is chemotactic. (zaškrtl-a)
 3) + Opsonizes bacteria. (nezaškrtl-a)
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 21. (  5.orig.) Lysozyme degrades
 3) - capsular polysaccharide (zaškrtl-a)
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 22. ( 12.orig.) Which of the following cell types is considered a professional antigen-presenting cell? 
 1) + B cell (nezaškrtl-a)
 2) + macrophage (nezaškrtl-a)
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 40. ( 17.orig.) Which type of genetic exchange in bacteria is susceptible to the activity of deoxyribonuclease?
 2) - Transduction (zaškrtl-a)
 4) + Transformation (nezaškrtl-a)
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 53. ( 16.orig.) The ability of a cell to bind DNA to its surface and import it is required for which genetic process? 
 3) - Generalized transduction (zaškrtl-a)
 4) + Transformation (nezaškrtl-a)
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 57. ( 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?
 2) + exotoxin (nezaškrtl-a)
 3) - endotoxin (zaškrtl-a)
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 59. ( 20.orig.) Extracellular pathogens can attempt to avoid immune detection by
 2) - growing within a phagolysosome (zaškrtl-a)
 4) - inhibiting phagosome-lysosome fusion (zaškrtl-a)
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TEST:autumn2  Varianta:5         Tisknuto:17/12/2019
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  1. ( 26.orig.) All of the following statements regarding the epidemiology of infections caused by Yersinia enterocolitica are correct EXCEPT:
 2) + Person to person spread is quite common (nezaškrtl-a)
 3) - Infection is more prevalent in persons with histocompatibility antigen HLA-B27 (zaškrtl-a)
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  5. (  4.orig.) Puerperal fever is a streptococcal infection of the
 2) - skin (zaškrtl-a)
 3) + uterus (nezaškrtl-a)
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  9. ( 37.orig.) The substance(s) which can be produced by strains of Pseudomonas aeruginosa is/are
 2) + Exotoxins A and S (nezaškrtl-a)
 3) + Haemolysins (nezaškrtl-a)
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 11. ( 35.orig.) Pseudomonas aeruginosa can be diagnosed from the pigment, known as
 1) + Pyorubrin (nezaškrtl-a)
 3) + Pyocyanin (nezaškrtl-a)
 4) + Pyoverdin (nezaškrtl-a)
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 12. ( 38.orig.) The cogulase test is used to differentiate
 1) - Streptococcus pyogens from Staphylococcus aureus(zaškrtl-a)
 3) + Staphylococcus aureus from Staphylococcus epidermidis(nezaškrtl-a)
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 16. ( 23.orig.) All the following statements regarding etiologic agents of Chancroid are correct except:
 1) + The organism grow well on Standard Chocolate Agar (nezaškrtl-a)
 2) - The organism is susceptible to erythromycin (zaškrtl-a)
 4) - The organism is a small gram negative rod (zaškrtl-a)
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 24. ( 18.orig.) All of the following are pneumococcal diseases EXCEPT:
 1) - endocarditis (zaškrtl-a)
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 25. ( 36.orig.) Which of the following infection(s) can be caused by Pseudomonas aeruginosa?
 1) + Wound and burn infection (nezaškrtl-a)
 2) + Respiratory tract infection (nezaškrtl-a)
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 26. ( 12.orig.) Identify the bacteria which is (are) oxidase-positive?
 1) + Neisseria(nezaškrtl-a)
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 27. (  6.orig.) A positive Mantoux test indicates an area of induration of
 2) - 4-9 mm in diameter (zaškrtl-a)
 3) + 10 mm or more in diameter (nezaškrtl-a)
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 31. ( 27.orig.) Causes of bacterial meningitis in neonates include:
 1) + Escherichia coli(nezaškrtl-a)
 3) + Streptococcus pneumoniae(nezaškrtl-a)
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 33. (  1.orig.) Regarding the effect of benzylpenicillin (penicillin G) on bacteria, which one of the following organisms is LEAST likely to be resistant?
 1) - Neisseria gonorrhoeae(zaškrtl-a)
 2) + Streptococcus pyogenes(nezaškrtl-a)
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 35. ( 31.orig.) Ophthalmia neonatorum is caused by: 
 1) + Neisseria gonorrhoeae(nezaškrtl-a)
 4) - Escherichia coli(zaškrtl-a)
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 37. ( 28.orig.) Neisseria meningitis
 3) + It exists as normal flora in the nasopharynx of up to 5-15% of adults. (nezaškrtl-a)
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 38. ( 30.orig.) Which of the following statements is/are true about Haemophilus influenzae b (Hib) vaccine:
 1) + Made from capsular polysaccharide that has been extracted from cultures of Hib bacteria (nezaškrtl-a)
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 41. ( 19.orig.) BCG vaccine protects against which of the following?
 2) - Bacillus anthracis(zaškrtl-a)
 3) + Mycobacterium tuberculosis(nezaškrtl-a)
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 42. ( 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) + Aeromonas hydrophila(nezaškrtl-a)
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 44. ( 11.orig.) Staphylococcal food poisoning usually manifests itself following ingestion of contaminated food after
 1) - 8-12 hours (zaškrtl-a)
 2) + 2-6 hours (nezaškrtl-a)
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 45. (  7.orig.) Mycobacterium tuberculosis bacteria avoid innate immunity by
 1) - Living in an immuno-privileged tissue site (zaškrtl-a)
 3) + Interference with phagosome-lysosome fusion (nezaškrtl-a)
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 46. ( 32.orig.) Which of the following bacteria has the lowest 50% infective dose (ID50)?
 2) + Shigella sonnei(nezaškrtl-a)
 3) - Vibrio cholerae(zaškrtl-a)
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 48. ( 20.orig.) Bacteria commonly acquired from animals include
 1) - Legionella pneumophila(zaškrtl-a)
 3) + Listeria monocytogenes(nezaškrtl-a)
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 52. ( 14.orig.) Which is the most common form of anthrax? 
 2) + Cutaneous anthrax (nezaškrtl-a)
 4) - Inhalation anthrax (zaškrtl-a)