Spirochacter and Enterobacteriaceac problems
- 1. Transmission of pneumonic plague from man to man is through
Options- A. inoculation
- B. ingestion
- C. droplet infection
- D. all of these Discuss
Correct Answer: droplet infection
- 2. The bacteria which produce(s) ?-galactosidase is/are
Options- A. Citrobacter
- B. Enterohacter
- C. Serratia
- D. all of these Discuss
Correct Answer: all of these
- 3. Which of the following is the commonest species of Salmonella for causing zoonotic disease?
Options- A. S Indiana
- B. S newport
- C. S typhimurium
- D. S enteritidis Discuss
Correct Answer: S typhimurium
- 4. Which of the following media is selective for Salmonella?
Options- A. Thiosulphate citrate bile salt agar
- B. Wilson and Blair's brilliant-green bismuth sulphite agar medium
- C. Bile salt agar
- D. All of the above Discuss
Correct Answer: Wilson and Blair's brilliant-green bismuth sulphite agar medium
- 5. In Widal test, the significant titre for O agglutinins is generally
Options- A. 1:50 or more
- B. 1:100 or more
- C. 1:150 or more
- D. 1:2.00 or more Discuss
Correct Answer: 1:100 or more
- 6. Sereny test is used for the detection of
Options- A. enteropathogenic Escherichia coli
- B. enterotoxigenic E. coli
- C. enteroinvasive E. coli
- D. verotoxigenic E. coli Discuss
Correct Answer: enteroinvasive E. coli
- 7. Traveller's diarrhea is caused by
Options- A. enteropathogenic Escherichia coli (EPEC)
- B. entero invasive E. coli (EIEC)
- C. entero toxigenic E. coli (ETEC)
- D. entero haemorrhagic E. coli (EHEC) Discuss
Correct Answer: entero toxigenic E. coli (ETEC)
- 8. The technique(s), used for the assay of heat-labile enterotoxin produced by Escherichia coli, is/are
Options- A. Steroid production in Yl mouse adrenal cell culture
- B. Morphological changes in Chinese hamster ovary
- C. Enzyme-linked immunosorbent assay
- D. All of these Discuss
Correct Answer: All of these
- 9. The reaction(s) that is/are usually positive in Escherichia coli, is/ are
Options- A. Glucose fermentation
- B. Indole reaction
- C. Methyl red reaction
- D. All of these Discuss
Correct Answer: All of these
- 10. The media which serve(s) as enrichment media for Salmonella is/are
Options- A. Tetrathionate broth
- B. Brilliant green tetrathionate broth
- C. Selenite-F broth
- D. All of these Discuss
Correct Answer: All of these
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