MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following microorganism produces colicins in the intestine? |
| A. | E.coli |
| B. | B.subtilis |
| C. | Clostridium botulinum |
| D. | Streptococcus salivarius |
| Answer» B. B.subtilis | |
| 2. |
Where does the Streptococcus mutans adhere to the body site? |
| A. | intestinal tract |
| B. | tongue |
| C. | teeth |
| D. | hairs |
| Answer» D. hairs | |
| 3. |
How many day-old embryonated eggs were used by Reyniers to rear first germ-free animals? |
| A. | 20 |
| B. | 50 |
| C. | 2 |
| D. | 7 |
| Answer» B. 50 | |
| 4. |
WHICH_OF_THE_FOLLOWING_MICROORGANISM_PRODUCES_COLICINS_IN_INTESTINE??$ |
| A. | E.coli |
| B. | B.subtilis |
| C. | Clostridium botulinum |
| D. | Streptococcus salivarius |
| Answer» B. B.subtilis | |
| 5. |
WHERE_DOES_THE_STREPTOCOCCUS_MUTANS_ADHERE_TO_THE_BODY_SITE??$ |
| A. | intestinal tract |
| B. | tongue |
| C. | teeth |
| D. | hairs |
| Answer» D. hairs | |
| 6. |
Pseudomembranous colitis is caused by the strains of which of the following microorganism? |
| A. | Streptococcus mutans |
| B. | Clostridium difficile |
| C. | Streptococcus salivarius |
| D. | Clostridium botulinum |
| Answer» C. Streptococcus salivarius | |
| 7. |
Germ-free animals require lower levels of B vitamins. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Which of the following vitamins are not required by normal animals? |
| A. | Vit K |
| B. | Vit B |
| C. | Vit C |
| D. | Vit A |
| Answer» B. Vit B | |
| 9. |
Which among the following was the first germ-free animal to be reared? |
| A. | guinea pigs |
| B. | rats |
| C. | chickens |
| D. | monkey |
| Answer» D. monkey | |
| 10. |
How many day old embryonated eggs was used by Reyniers to rear first germ-free animals? |
| A. | 20 |
| B. | 50 |
| C. | 2 |
| D. | 7 |
| Answer» B. 50 | |
| 11. |
Animals that are contaminated with germs are said to be gnotobiotic. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Within how many days after birth a stable flora develops? |
| A. | 1 day |
| B. | 7 days |
| C. | 30 days |
| D. | 7-14 days |
| Answer» E. | |
| 13. |
Who among the following was successful in raising 17 germ-free chickens for 40 days? |
| A. | Pasteur |
| B. | Schottelius |
| C. | Cohendy |
| D. | Reyniers |
| Answer» D. Reyniers | |