Gastrointestinal Pathogens Quiz

32 Questions

SettingsSettingsSettings
Please wait...
Gastrointestinal Pathogens Quiz

A pathogen is simply defined as a microorganism that causes a disease to its host. In other words, a pathogen is a microbe that can cause damage to a host. Gastrointestinal pathogens are pathogens that reside and damage the stomach and intestines of the host. This quiz talks about gastrointestinal pathogens, how they work, and how to tackle them.


Questions and Answers
  • 1. 
    Check ALL that applies to Vibrio
    • A. 

      Comma-shaped

    • B. 

      Straight rods

    • C. 

      Pleomorphic

    • D. 

      Rounded ends/coccobacilli

    • E. 

      May occur singly, in pairs, or in short chains

    • F. 

      Gram-negative rods

  • 2. 
    Check ALL that applies to Aeromonas
    • A. 

      Comma-shaped

    • B. 

      Straight rods

    • C. 

      Pleomorphic

    • D. 

      Rounded ends/coccobacilli

    • E. 

      May occur singly, in pairs, or in short chains

    • F. 

      Gram-negative rods

  • 3. 
    Check ALL that applies to Vibrio
    • A. 

      Agent O/129 susceptible

    • B. 

      String test positive

    • C. 

      Growth in 6% NaCl

    • D. 

      Agent O/129 resistant

    • E. 

      String test negative

    • F. 

      No growth in 6% NaCl

  • 4. 
    Check ALL that applies to Aeromonas
    • A. 

      Agent O/129 susceptible

    • B. 

      String test positive

    • C. 

      Growth in 6% NaCl

    • D. 

      Agent O/129 resistant

    • E. 

      String test negative

    • F. 

      No growth in 6% NaCl

  • 5. 
    All of these reagents but one can lyse cells and release nucleic acid material
    • A. 

      0.5% sodium deoxycholate

    • B. 

      Sodium taurocholate

    • C. 

      0.05% sodium deoxycholate

    • D. 

      0.5% Deoxycholic acid

  • 6. 
    This is viscous and will form into a mucoid “string” when teased
    • A. 

      DNA

    • B. 

      MRNA

    • C. 

      TRNA

    • D. 

      RRna

  • 7. 
    Which of the organisms listed can GROW in 0% NaCl
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

  • 8. 
    Which of the organisms listed is INDOLE NEGATIVE
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

  • 9. 
    Which of the organisms listed PRODUCES GAS FROM GLUCOSE
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

    • L. 

      V. furnissli

  • 10. 
    Which of the organisms listed is a DELAYED/LATE lactose utilizer
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

    • L. 

      V. furnissli

  • 11. 
    Which of the organisms listed is Lysine decarboxylase (Positive)
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

    • L. 

      V. furnissli

  • 12. 
    Which of the organisms listed has variable growth in 6% NaCl
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

    • L. 

      V. furnissli

  • 13. 
    Which of the organisms listed is/are OXIDASE variable
    • A. 

      A. caviae complex

    • B. 

      A. hydrophila complex

    • C. 

      A. jandaei (A. veronii complex)

    • D. 

      A. schubertii (A. veronii complex)

    • E. 

      A. veronii biovar veronii

    • F. 

      Chromobacterium violaceum

  • 14. 
    Which of the organisms listed PRODUCES gas from glucose
    • A. 

      A. caviae complex

    • B. 

      A. hydrophila complex

    • C. 

      A. jandaei (A. veronii complex)

    • D. 

      A. schubertii (A. veronii complex)

    • E. 

      A. veronii biovar sobria

    • F. 

      A. veronii biovar veronii

    • G. 

      Chromobacterium violaceum

  • 15. 
    Which of the organisms listed is/are POSITIVE for esculin hydrolysis
    • A. 

      A. caviae complex

    • B. 

      A. hydrophila complex

    • C. 

      A. jandaei (A. veronii complex)

    • D. 

      A. schubertii (A. veronii complex)

    • E. 

      A. veronii biovar sobria

    • F. 

      A. veronii biovar veronii

    • G. 

      Chromobacterium violaceum

  • 16. 
    Which of the organisms listed FERMENTS sucrose
    • A. 

      A. caviae complex

    • B. 

      A. hydrophila complex

    • C. 

      A. jandaei (A. veronii complex)

    • D. 

      A. schubertii (A. veronii complex)

    • E. 

      A. veronii biovar sobria

    • F. 

      A. veronii biovar veronii

    • G. 

      Chromobacterium violaceum

  • 17. 
    Which of the organisms listed is/are lysine decarboxylase (negative)
    • A. 

      A. caviae complex

    • B. 

      A. hydrophila complex

    • C. 

      A. jandaei (A. veronii complex)

    • D. 

      A. schubertii (A. veronii complex)

    • E. 

      A. veronii biovar sobria

    • F. 

      A. veronii biovar veronii

    • G. 

      Chromobacterium violaceum

  • 18. 
    Which of the organisms listed is/are arginine dihydrolase (negative)
    • A. 

      A. caviae complex

    • B. 

      A. hydrophila complex

    • C. 

      A. jandaei (A. veronii complex)

    • D. 

      A. schubertii (A. veronii complex)

    • E. 

      A. veronii biovar sobria

    • F. 

      A. veronii biovar veronii

    • G. 

      Chromobacterium violaceum

  • 19. 
    Which of the organisms listed is/are ornithine decarboxylase (positive)
    • A. 

      A. caviae complex

    • B. 

      A. hydrophila complex

    • C. 

      A. jandaei (A. veronii complex)

    • D. 

      A. schubertii (A. veronii complex)

    • E. 

      A. veronii biovar sobria

    • F. 

      A. veronii biovar veronii

    • G. 

      Chromobacterium violaceum

  • 20. 
    Which of the organisms listed has VERY POOR growth in in TCBS
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

    • L. 

      V. furnissli

  • 21. 
    Which of the organisms listed has GREEN colonies in TCBS
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

    • L. 

      V. furnissli

  • 22. 
    Which of the organisms listed has YELLOW colonies in TCBS
    • A. 

      V. cholerae

    • B. 

      V. mimicus

    • C. 

      V. vulnificus

    • D. 

      V. parahaemolyticus

    • E. 

      V. alginolyticus

    • F. 

      V. cincinnatiensis

    • G. 

      Photobacterium damsela

    • H. 

      Grimontii hollisae

    • I. 

      V. fluvialis

    • J. 

      V. harveyi

    • K. 

      V. metschnikovii

    • L. 

      V. furnissli

  • 23. 
    What is the motility characteristic of Campylobacter?
    • A. 

      Darting motlity

    • B. 

      Swarming motility

    • C. 

      Falling leaves motlity

    • D. 

      Non-motile

  • 24. 
    Which has long spirals or S or seagull wing shapes rods or coccobacilli (in old cultures)
    • A. 

      Vibrio

    • B. 

      Aeromonas

    • C. 

      Campylobacter

    • D. 

      Helicobacter

  • 25. 
    Check ALL the applies to Helicobacter
    • A. 

      Long spirals or S or seagull wing shapes rods or coccobacilli (in old cultures)

    • B. 

      Darting motility

    • C. 

      Presumptively identified if found in gastric biopsies

    • D. 

      Urease positive

Back to Top Back to top