MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
food poisoning is due to |
| A. | invasion of bacteria in the intestine |
| B. | preformed toxin |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» C. both (a) and (b) | |
| 2. |
Which of the following types of produces alpha toxin most abundantly? |
| A. | Type A |
| B. | Type B |
| C. | Type C |
| D. | Type D |
| Answer» B. Type B | |
| 3. |
Food poisoning strains of belong to |
| A. | type A |
| B. | type B |
| C. | type C |
| D. | type D |
| Answer» B. type B | |
| 4. |
The most toxic exotoxin is |
| A. | tetanus toxin |
| B. | diphtheria toxin |
| C. | botulinum toxin |
| D. | cholera toxin |
| Answer» D. cholera toxin | |
| 5. |
Stormy clot reaction is useful in identification of |
| A. | <i>C tetani</i> |
| B. | <i>C botulinum</i> |
| C. | <i>C perfringens</i> |
| D. | <i>C difficile</i> |
| Answer» D. <i>C difficile</i> | |
| 6. |
Food poisoning strains of Clostridium perfringens belong to |
| A. | type A |
| B. | type B |
| C. | type C |
| D. | type D |
| Answer» B. type B | |
| 7. |
Reddening of meat in cooked meat broth is produced by |
| A. | <i>C tetani</i> |
| B. | <i>C histolyticum</i> |
| C. | <i>Clostridium perfringens</i> |
| D. | <i>C sporogenes</i> |
| Answer» D. <i>C sporogenes</i> | |
| 8. |
Blackening of meat in cooked meat broth is through |
| A. | <i>C histolyticum</i> |
| B. | <i>C perfringens</i> |
| C. | <i>C tetani</i> |
| D. | all of these |
| Answer» B. <i>C perfringens</i> | |
| 9. |
Which of the following(s) is/are obligate anaeorbes? |
| A. | <i> C septicum</i> |
| B. | <i>C novyi</i> |
| C. | <i>C tetani</i> |
| D. | All of these |
| Answer» E. | |
| 10. |
Clostridium botulinum food poisoning is due to |
| A. | invasion of bacteria in the intestine |
| B. | preformed toxin |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» C. both (a) and (b) | |
| 11. |
Drumstick appearance is characteristic of |
| A. | <i>C tetanomorphum</i> |
| B. | <i>C tetani</i> |
| C. | <i>C sphenoides</i> |
| D. | all of these |
| Answer» E. | |
| 12. |
Typical drumstick appearance of bacilli is generally seen in |
| A. | <i>C perfringens</i> |
| B. | <i>C botulinum</i> |
| C. | <i>C tetani</i> |
| D. | <i>C histolyticum</i> |
| Answer» D. <i>C histolyticum</i> | |
| 13. |
Which of the following types of Clostridium perfringens produces alpha toxin most abundantly? |
| A. | Type A |
| B. | Type B |
| C. | Type C |
| D. | Type D |
| Answer» B. Type B | |
| 14. |
Which of the following properties are the characteristics of tetanospasmin? |
| A. | It is a heat-labile protein |
| B. | It is a neurotoxin |
| C. | It can be toxoided |
| D. | All of these |
| Answer» E. | |
| 15. |
Which of the following is predominantly proteolytic? |
| A. | <i>C. sporogenes</i> |
| B. | <i>C. histolyticum</i> |
| C. | Both (a) and (b) |
| D. | <i>C. speticum</i> |
| Answer» D. <i>C. speticum</i> | |
| 16. |
Types of exotoxin, most commonly associated with botulism in man, is/are? |
| A. | Type A |
| B. | Type B |
| C. | Type E |
| D. | All of these |
| Answer» E. | |
| 17. |
Nagler's reaction is useful for the identification of |
| A. | <i>C tetani</i> |
| B. | <i>C perfringens</i> |
| C. | <i>C botulinum</i> |
| D. | <i>C difficile</i> |
| Answer» C. <i>C botulinum</i> | |
| 18. |
Which of the following species of Clostridium is predominantly sacchrolytic? |
| A. | <i>C septicum</i> |
| B. | <i>C perfringens</i> |
| C. | <i>C novyi</i> |
| D. | All of these |
| Answer» E. | |