MCQOPTIONS
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MCQOPTIONS
This section includes 14 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 group of bacteria among the following give a positive reaction by the oxidase test? |
| A. | Spirochetes |
| B. | Aerobic/Microaerophilic, Motile, Helical/Vibroid, Gram-negative bacteria |
| C. | Non-motile, Gram-negative, Curved bacteria |
| D. | Aerobic, Gram-negative rods and cocci |
| Answer» C. Non-motile, Gram-negative, Curved bacteria | |
| 2. |
Which genus among the following has certain similarities to the genus Bdellovibrio? |
| A. | Azospirillum |
| B. | Oceanospirillum |
| C. | Campylobacter |
| D. | Vamprirovibrio |
| Answer» E. | |
| 3. |
Which of the following causes diarrhea in humans? |
| A. | A.lipoferum |
| B. | L.interrogans |
| C. | C.jejuni |
| D. | E.coli |
| Answer» D. E.coli | |
| 4. |
WHICH_OF_THE_FOLLOWING_CAUSES_DIARRHEA_IN_HUMANS??$ |
| A. | A.lipoferum |
| B. | L.interrogans |
| C. | C.jejuni |
| D. | E.coli |
| Answer» D. E.coli | |
| 5. |
Which group of bacteria among the following give a positive reaction by the oxidase test?$ |
| A. | Spirochetes |
| B. | Aerobic/Microaerophilic, Motile,Helical/Vibroid,Gram-negative bacteria |
| C. | Non-motile,Gram-negative, Curved bacteria |
| D. | Aerobic,Gram-negative rods and cocci |
| Answer» C. Non-motile,Gram-negative, Curved bacteria | |
| 6. |
Which_genus_among_the_following_has_certain_similarities_to_the_genus_Bdellovibrio?$ |
| A. | Azospirillum |
| B. | Oceanospirillum |
| C. | Campylobacter |
| D. | Vamprirovibrio |
| Answer» E. | |
| 7. |
Which of the following have bipolar tufts of flagella? |
| A. | Aquaspirillum |
| B. | Azospirillum |
| C. | Cristispira |
| D. | Borrelia |
| Answer» B. Azospirillum | |
| 8. |
Which of the following bacteria causes syphilis in humans? |
| A. | Treponema dysenteriae |
| B. | Treponema pallidum |
| C. | Leptospira biflexa |
| D. | Leptospira interrogans |
| Answer» C. Leptospira biflexa | |
| 9. |
Which among the following are microaerophilic bacteria? |
| A. | Spirochaeta |
| B. | Cristispira |
| C. | Treponema |
| D. | Borrelia |
| Answer» E. | |
| 10. |
The family Leptospiraceae are aerobes. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Which of the following methods is used for viewing spirochetes? |
| A. | Bright-field microscopy |
| B. | Phase-contrast microscopy |
| C. | Dark-field microscopy |
| D. | Electron microscopy |
| Answer» D. Electron microscopy | |
| 12. |
Spirochetes like other bacteria swim best in media of low viscosity. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Where is the endoflagella located in Spirochetes? |
| A. | In the cell membrane |
| B. | In the cytoplasm |
| C. | In the peptidoglycan layer |
| D. | In the periplasmic space |
| Answer» E. | |
| 14. |
The endoflagella is present in which class of bacteria? |
| A. | Spirilla |
| B. | Spirochetes |
| C. | Bacillus |
| D. | Coccus |
| Answer» C. Bacillus | |