MCQOPTIONS
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MCQOPTIONS
This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Vibrio, Aeromonas and Plesiomonas knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
............... is less likely to cause gastroenteritis or diarrheal disease in humans. |
| A. | Vibrio spp |
| B. | Salmonella spp |
| C. | Plesiomonas spp |
| D. | Campylobacter spp |
| Answer» D. Campylobacter spp | |
| 2. |
Vibrio vulnificus and V. parahaemolyticus both gram-negative, motile bacteria are mostly found in warm coastal areas. What is/are the common source through which these bacteria can be transferred to human and cause infections? |
| A. | Water |
| B. | Oysters |
| C. | Shellfish |
| D. | All of the above |
| Answer» E. | |
| 3. |
Helicobacter pylori infection is most prevalent in developing countries, in what age people the chances of infection is the highest? |
| A. | 10 to 30 |
| B. | 30 to 50 |
| C. | 60 and above |
| D. | Infant |
| Answer» D. Infant | |
| 4. |
Aeromonas hydrophila mostly causes infections to fish and amphibians and less pathogenic to humans, one of the most common infection in human is gastroenteritis. What is the other common human disease caused by bacteria? |
| A. | Peptic ulcer |
| B. | Cellulitis |
| C. | Asthma |
| D. | Gastritis |
| Answer» C. Asthma | |
| 5. |
Which of the following biotypes of Vibrio cholerae is prevalent in developing countries? |
| A. | EL Tor |
| B. | Classic |
| C. | Biotype 0139 |
| D. | Biotype 139 |
| Answer» B. Classic | |
| 6. |
Which one of the following virulence factors may be associated with the pathogenesis of infection caused by Helicobacter pylori? |
| A. | Flagella |
| B. | Lipopolysaccharides |
| C. | Exotoxins |
| D. | Endotoxins |
| Answer» E. | |
| 7. |
Which one of these is not the common laboratory tests for the identification of Helicobacter pylori? |
| A. | Biopsy test |
| B. | Urease breath test |
| C. | Stool antigen test |
| D. | Urine test |
| Answer» E. | |
| 8. |
Helicobacter pylori is associated with all of the following, EXCEPT? |
| A. | Malt lymphoma |
| B. | Gastric carcinoma |
| C. | Peptic ulcer |
| D. | Burkitt lymphoma |
| Answer» E. | |
| 9. |
What is/are not the growth characteristics of Campylobacter spp? Select from all the options given below. |
| A. | Oxidase and catalase positive |
| B. | Produce H2S |
| C. | Ferment carbohydrates |
| D. | Have darting motility |
| Answer» D. Have darting motility | |
| 10. |
Campylobacter jejuni is a microaerophilic bacteria, which of the following statement is true for the culture of this bacteria? |
| A. | An atmosphere of increased O2 (10%) with added CO2 (5%) |
| B. | An atmosphere of reduced O2 (5%) with added CO2 (10%) |
| C. | An atmosphere of reduced CO2 (5%) with added CO2 (10%) |
| D. | An atmosphere of increased CO2(10%) with added O2 (5%) |
| Answer» C. An atmosphere of reduced CO2 (5%) with added CO2 (10%) | |
| 11. |
Campylobacter jejuni is one of the most common causes of food poisoning, which also has been associated with post diarrheal syndrome, the syndrome is called.......... ......? |
| A. | Toxic shock syndrome |
| B. | Guillain-Barre syndrome |
| C. | Short bowel syndrome |
| D. | Rett syndrome |
| Answer» C. Short bowel syndrome | |
| 12. |
The transport medium for Vibrio cholerae can be |
| A. | Venkatraman-Ramakrishnan medium |
| B. | Selenite F broth |
| C. | Tetrathionate broth |
| D. | Nutrient broth |
| Answer» B. Selenite F broth | |
| 13. |
Which of the following conditions can be caused by Plesiomonas? |
| A. | Septicaemia |
| B. | Gastroenteritis |
| C. | Cellulites |
| D. | All of these |
| Answer» E. | |
| 14. |
Which of the following statements is/are not correct about Aeromonas spp and Plesiomonas spp? |
| A. | Both are oxidase positive |
| B. | They can be found in freshwater and soil |
| C. | They are gram-negative rods |
| D. | Grow well on TCBS (thiosulphate citrate bile salt) media |
| Answer» E. | |
| 15. |
What is the most common food that causes foodborne gastro-enteritis by Vibrio parahaemolyticus? |
| A. | |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» D. D. | |
| 16. |
Vibrio cholerae causes Cholera and mostly occurs in developing countries, symptoms include diarrhea and vomiting within 2-3 days after the ingestion of contaminated water or food. Name the type of diarrhea caused by V.cholerae? |
| A. | Acute watery diarrhea with blood |
| B. | Acute watery diarrhea resembling rice water |
| C. | Mild watery diarrhea resembling rice water |
| D. | Acute watery diarrhea with no blood |
| Answer» C. Mild watery diarrhea resembling rice water | |
| 17. |
A stool specimen from 5 years old child is cultured in selective media having high pH concentration. After the incubation, colonies appear smooth and round and identified as a comma-shaped, gram-negative, motile bacteria. Name the bacteria isolated? |
| A. | Aeromonas spp |
| B. | Pseudomonas aeruginosa |
| C. | Streptococcus pyogens |
| D. | Vibrio cholerae |
| Answer» E. | |
| 18. |
Which of the following toxin resembles cholera toxin? |
| A. | Stable toxin of E. coli |
| B. | Diphtheria toxin |
| C. | Labile toxin of Escherichia coli |
| D. | Tetanus toxin |
| Answer» D. Tetanus toxin | |
| 19. |
The DNA coding for the production of cholera toxin in Vibrio cholerae is on the |
| A. | phage |
| B. | plasmid |
| C. | chromosome |
| D. | transposon |
| Answer» D. transposon | |
| 20. |
Which of the followings can be used to differentiate between classical and El Tor biotypes of Vibrio cholerae? |
| A. | Sensitivity to Mukerjee's group IV phage |
| B. | Agglutination of fowl RBCs |
| C. | Sensitivity to polymyxin B |
| D. | All of these |
| Answer» E. | |
| 21. |
Which of the following biotypes of Vibrio cholerae are prevalent in India? |
| A. | EI Tor |
| B. | Classical |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» B. Classical | |
| 22. |
Which of the following medium are used to differentiate the colonies of Vibrio cholerae and V parahaemolyticus? |
| A. | Alkaline bile salt |
| B. | Thiosulphate-citrate-bile-sucrose |
| C. | MacConkey |
| D. | All of the above |
| Answer» C. MacConkey | |