Microbiology Practice Test 7

1. In which of the following seasons does the nutrient concentration falls at a drastically lower level?

2. Which of the following comes under the category of positive association?

3. Antibiotics are not effective against plant pathogens.

4. Protozoa and other minute animal life are known as ____________________

5. Bacteria are likely to be more prevalent in soils of vineyards, orchards and apiaries.

6. Aquatic bacteria tend to be Gram-negative.

7. Which of the following techniques is used for identification and enumeration of algae, bacteria, protozoa?

8. Anthramycin is which of the following type of antibiotic?

9. Which of the following techniques can be used to separate different-size fractions of the aquatic microbial community?

10. The international unit of penicillin is defined by how much amount of International Standard?