MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Mycoplasmas cannot give rise to walled bacterial form like L-phase variants. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
L.flagellatum performs the function of synthesizing _______________ |
| A. | vitamins |
| B. | hormones |
| C. | organic acids |
| D. | folic acid and toxins |
| Answer» E. | |
| 3. |
Lyticum flagellatum is an endosymbiont carried by certain strains of __________________ |
| A. | bacteria |
| B. | fungi |
| C. | viruses |
| D. | protozoa |
| Answer» E. | |
| 4. |
What type of colonies are formed by Mycoplasmas on the agar plate? |
| A. | colourless |
| B. | coloured |
| C. | lawn formation |
| D. | fried-egg |
| Answer» E. | |
| 5. |
The colonies of Mycoplasmas in agar plate can be observed by means of a _______________ |
| A. | low-power microscope |
| B. | high-power microscope |
| C. | phase contrast microscopy |
| D. | bright-field microscopy |
| Answer» B. high-power microscope | |
| 6. |
The smallest cells of mycoplasmas are about ___________ in diameter. |
| A. | 1 micrometre |
| B. | 0.3 micrometre |
| C. | 5 micrometre |
| D. | 1 metre |
| Answer» C. 5 micrometre | |
| 7. |
MYCOPLASMAS_CANNOT_GIVE_RISE_TO_WALLED_BACTERIAL_FORM_LIKE_L-PHASE_VARIANTS.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
L.flagellatum performs the function of synthesizing ______________? |
| A. | vitamins |
| B. | hormones |
| C. | organic acids |
| D. | folic acid and toxins |
| Answer» E. | |
| 9. |
Lyticum flagellatum is an endosymbiont carried by certain strains of _________________? |
| A. | bacteria |
| B. | fungi |
| C. | viruses |
| D. | protozoa |
| Answer» E. | |
| 10. |
Which of the following family of bacteria are pathogenic for citrus and other plants? |
| A. | Mycoplasmataceae |
| B. | Acholeplasmataceae |
| C. | Spiroplamataceae |
| D. | Anaplasmataceae |
| Answer» D. Anaplasmataceae | |
| 11. |
The mycoplasmas require which of the following substance for growth? |
| A. | Nitrogen |
| B. | Carbon |
| C. | Cholesterol |
| D. | Glucose |
| Answer» D. Glucose | |
| 12. |
What type of colonies are formed by Mycoplasmas on agar plate? |
| A. | colourless |
| B. | coloured |
| C. | lawn formation |
| D. | fried-egg |
| Answer» E. | |
| 13. |
The colonies of Mycoplasmas in agar plate can be observed by means of a __________________. |
| A. | low-power microscope |
| B. | high-power microscope |
| C. | phase contrast microscopy |
| D. | bright-field microscopy |
| Answer» B. high-power microscope | |
| 14. |
Mycoplasmas can be cultivated in vitro on nonliving media as _____________ |
| A. | facultative aerobes |
| B. | obligate aerobes |
| C. | facultative anaerobes |
| D. | microaerophiles |
| Answer» D. microaerophiles | |
| 15. |
Penicillin causes inhibition of Mycoplasmas. |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
The smallest cells of mycoplasmas are about ___________ in diameter. |
| A. | 1 micrometre |
| B. | 0.3 micrometre |
| C. | 5 micrometre |
| D. | 1 metre |
| Answer» C. 5 micrometre | |