Medical Microbiology

55 Questions | By Abbietullett | Last updated: Dec 30, 2020 | Total Attempts: 2393

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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