Medical Microbiology

55 Questions | Total Attempts: 2393

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Medical Microbiology

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Questions and Answers
  • 1. 
    What word describes a mutually beneficial relationship?
    • A. 

      Saprophytic

    • B. 

      Commensal

    • C. 

      Symbiotic

    • D. 

      Pathogenic

  • 2. 
    What does the protozoa plasmodia cause?
    • A. 

      Ringworm

    • B. 

      Malaria

    • C. 

      Dysentry

    • D. 

      Meningitis

  • 3. 
    What does Staphylococcus aureus cause?
    • A. 

      Boils, septicaemia, food poisoning, wound infections

    • B. 

      Tonsillitis, cellulitis, scarlet fever, septicaemia

    • C. 

      Pneumonia., otitis media, meningitis

    • D. 

      Endocarditis, dental caries

  • 4. 
    What does Streptococcus pneumoniae cause?
    • A. 

      Boils, septicaemia, food poisoning, wound infections

    • B. 

      Tonsillitis, cellulitis, scarlet fever, septicaemia

    • C. 

      Pneumonia., otitis media, meningitis

    • D. 

      Endocarditis, dental caries

  • 5. 
    Salmonella causes Enteric fever (typhoid) and food poisoning. Is it a...
    • A. 

      Fungi

    • B. 

      Gram positive bacilli

    • C. 

      Gram negative bacilli

    • D. 

      Gram positive cocci

  • 6. 
    Hepatitis B is caused by the DNA virus hepadnavirus. How is it transmitted?
    • A. 

      Blood and bodily fluids

    • B. 

      Airborne

    • C. 

      Waterborne

    • D. 

      Foodborne

  • 7. 
    Which virus is known to cause cervical cancer?
    • A. 

      Papilloma virus

    • B. 

      Parvovirus

    • C. 

      Poxvirus

    • D. 

      Paramyxoviruses

  • 8. 
    What do the RNA orthomyxoviruses cause?
    • A. 

      Influenza

    • B. 

      Yellow fever

    • C. 

      Colds

    • D. 

      Meningitis

  • 9. 
    Which of these causes AIDs?
    • A. 

      Rhabdoviruses

    • B. 

      Retroviruses

    • C. 

      Reoviruses

    • D. 

      Orthomyxoviruses

  • 10. 
    Gram positive cell walls are what percentage peptidoglycan?
    • A. 

      90-95%

    • B. 

      50-60%

    • C. 

      5-10%

    • D. 

      25-30%

  • 11. 
    For an anaerobic infection which drug is our first choice?
    • A. 

      Metronidazole

    • B. 

      Amoxycillin

    • C. 

      Gentamicin

    • D. 

      Vancomycin

  • 12. 
    What does clostridium difficle, an anaerobe, cause?
    • A. 

      Oral infections and Genital tract infections

    • B. 

      Overgrowth in intestine following antibiotic treatment, causes antibiotic associated diarrhoea and pseudomembranous colitis

    • C. 

      Tetanus

    • D. 

      Intra-abdominal absecesses, peritonitis

  • 13. 
    Actively participates in host tissue damage. Defined as a naturally occurring protein synthesised during infection of the host that on first time exposure in the host is adverse to the well being of the host. Is it an...
    • A. 

      Endotoxin

    • B. 

      Exotoxin

  • 14. 
    Which of these is not a gram negative bacteria?
    • A. 

      Escherichia coli (E. coli)

    • B. 

      Salmonella

    • C. 

      Haemophilus influenzae

    • D. 

      Streptococcus pneumoniae

  • 15. 
    Which of these gram negative bacteria commonly cause a UTI?
    • A. 

      Escherichia coli (E. coli)

    • B. 

      Neisseria gonorrhoeae

    • C. 

      Neisseria meningitis

    • D. 

      Salmonella

  • 16. 
    What disease/condition does salmonella cause?
    • A. 

      Hepatobiliary tract infection

    • B. 

      Enteric fever and Gastro enteritis in the elderly

    • C. 

      Respiratory and CNS infection inespecially in infants

    • D. 

      CNS infection

  • 17. 
    What disease/condition does Haemophilus influenzae cause?
    • A. 

      Respiratory and CNS infection inespecially in infants

    • B. 

      Enteric fever

    • C. 

      Cellulitis/skin infection

    • D. 

      Endocarditis

  • 18. 
    What type of antibiotics work by affecting cell wall synthesis?
    • A. 

      BETA-LACTAM ANTIBIOTICS

    • B. 

      TETRACYCLINS

    • C. 

      AMINOGLYCOSIDES

    • D. 

      MACROLIDES

  • 19. 
    Aminoglycosides work by Interaction with 30S subunit of ribosomes. Which of these are examples of aminoglycosides?
    • A. 

      Streptomycin, gentamycin

    • B. 

      Erythromycin, azithromycin, clarithromycin

    • C. 

      Vancomycin

    • D. 

      Penicillin

  • 20. 
    Macrolides bind to 50S subunit of ribosome: inhibits translocation of growing peptide chain. Which of these are examples of macrolides?
    • A. 

      Streptomycin, gentamycin

    • B. 

      Erythromycin, azithromycin, clarithromycin

    • C. 

      Vancomycin

    • D. 

      Amoxicillin

  • 21. 
    Which of these groups of antibiotics work by affecting nucleic acid function or synthesis?
    • A. 

      MACROLIDES

    • B. 

      QUINOLONES AND FLUOROQUINOLONES

    • C. 

      AMINOGLYCOSIDES

    • D. 

      SULFONAMIDES

  • 22. 
    Which of these antibiotics works by inhibiting the folic acid converting enzyme?
    • A. 

      Trimetroprim

    • B. 

      Amoxicillin

    • C. 

      Metronidazole

    • D. 

      Rifampicin

  • 23. 
    What is the clinical manifestation of poliovirus?
    • A. 

      Gastroenteritis

    • B. 

      Myocarditis

    • C. 

      Spinal paralysis

    • D. 

      Conjunctivitis

  • 24. 
    Spring fatigue, Burkitt lymphoma and nasopharynxcarconoma can all be caused by which virus?
    • A. 

      Orthopoxviruses

    • B. 

      EBV

    • C. 

      Caliciviruses

    • D. 

      Hepatitis

  • 25. 
    Which of these is not a bloodborne virus?
    • A. 

      HIV

    • B. 

      Hepatitis A

    • C. 

      Hepatitis B

    • D. 

      Hepatitis D