MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 3 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 is symbiotic nitrogen fixing bacteria? |
| A. | Rhizobium trifolii |
| B. | Clostridium pasteurianum |
| C. | Azotobacter sp. |
| D. | Escherichia coli |
| Answer» B. Clostridium pasteurianum | |
| 2. |
How much time does nitrifying bacteria require to grow at an incubation of 250 to 300 C? |
| A. | 1 day |
| B. | 2-3 days |
| C. | 15 days |
| D. | 1 to 4 months |
| Answer» E. | |
| 3. |
Ammonia oxidizers and nitrite oxidizers are ______________ |
| A. | Gram-negative chemolithotrophs |
| B. | Gram-positive chemolithotrophs |
| C. | Gram-negative photolithotrophs |
| D. | Gram-positive photolithotrophs |
| Answer» B. Gram-positive chemolithotrophs | |