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. |
Gram-negative bacterium is/are |
| A. | <i>Escherichia</i> |
| B. | <i>Clostridia </i> |
| C. | <i>Staphylococci</i> |
| D. | All of these |
| Answer» B. <i>Clostridia </i> | |
| 2. |
Thermus thermopiles is a |
| A. | gram negative eubacteria |
| B. | gram positive eubacteria |
| C. | gram negative archebacteria |
| D. | gram positive archebacteria |
| Answer» B. gram positive eubacteria | |
| 3. |
Which of the following is a gram-positive bacteria? |
| A. | <i>Lactobacillus</i> |
| B. | <i>Staphylococci</i> |
| C. | <i>Streptococci</i> |
| D. | All of these |
| Answer» E. | |
| 4. |
The enzyme, which hydrolyses the murein is |
| A. | perxoidase |
| B. | tannase |
| C. | lysozyme |
| D. | none of these |
| Answer» D. none of these | |
| 5. |
Bacterial spoilage is identified by which of the following morphological characteristics? |
| A. | Encapsulation |
| B. | Endospores |
| C. | Cell aggregation |
| D. | All of these |
| Answer» E. | |
| 6. |
Bacteria are |
| A. | saprophytic |
| B. | symbiotic |
| C. | hyper parasitic |
| D. | all of these |
| Answer» B. symbiotic | |
| 7. |
Gram-negative bacteria, responsible for food poisoning, is/are |
| A. | <i>Salmonella</i> |
| B. | <i>Pseudomonas </i> |
| C. | <i>Clostridia</i> |
| D. | None of these |
| Answer» B. <i>Pseudomonas </i> | |
| 8. |
Coliform bacteria on fermentation of carbohydrates yields |
| A. | lactic acid |
| B. | acetic acid |
| C. | formic acid |
| D. | all of these |
| Answer» E. | |
| 9. |
Which of the following is/are not a gram-positive bacteria? |
| A. | Streptococci |
| B. | <i>Pseudomonas</i> |
| C. | Mycobacteria |
| D. | None of these |
| Answer» C. Mycobacteria | |
| 10. |
Which of the following gram-positive bacteria causes pharyngitis (sore throat)? |
| A. | <i>Neisseria</i> |
| B. | <i>Streptococcus</i> |
| C. | <i>Staphylococcus</i> |
| D. | <i>Mycobacterium</i> |
| Answer» C. <i>Staphylococcus</i> | |
| 11. |
Which of the following gram-negative bacteria is/are not aerobic? |
| A. | <i>Pseudomonas</i> |
| B. | <i>Neisseria</i> |
| C. | <i>Escherichia</i> |
| D. | None of these |
| Answer» D. None of these | |
| 12. |
Gram-positive bacteria, responsible for food poisoning, is/are |
| A. | <i>Mycoplasmas</i> |
| B. | <i>Pseudomonas</i> |
| C. | <i>Clostridia</i> |
| D. | all of these |
| Answer» D. all of these | |
| 13. |
The gram-positive bacteria lack __________ structure/component? |
| A. | outer membrane |
| B. | murein |
| C. | teichoic acid |
| D. | plasma membrane |
| Answer» B. murein | |