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Microbiology Practice Test: Microbiology of Soil & Aquatic Microbiology
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Microbiology of Soil & Aquatic Microbiology topics include: Soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. Soil microbiology is a branch of microbiology that studies the microorganisms in soil. It focuses on their roles in soil formation, fertility, and nutrient cycling.  Soil microorganisms include:  Bacteria, Fungi, Viruses, Protozoa, Actinomycetes, Algae, Nematodes.  These microorganisms are key to soil health. Soils with more organic residues tend to have more... Show more
Microbiology Practice Test: Microbiology of Soil & Aquatic Microbiology
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25 Questions

1. Which of the following types of association is present among Staphylococcus aureus and Aspergillus terreous?
2. Which of the following product is not obtained from dissimilation of organic matter under aerobic conditions?
3. Thermus aquaticus, a common bacterial inhabitant generally prevails in temperatures of ____________
4. Most aquatic microorganisms can grow on the usual laboratory media.
5. Rapidly expanding urbanization makes it difficult to generalize upon typical microbial flora of streams.
6. Fungi produces which of the following inhibitory toxic product?
7. Hydrostatic pressure increases the boiling point of water but does not change the solubility of nutrients.
8. Wells less than ___________ deep are considered to be shallow.
9. Which of the following aquatic organisms contribute in a small amount to the shallow estuary food web?
10. Which of the following organism have siliceous skeletons?
11. What amount of dry organic matter is produced by deep ocean areas?
12. The characteristic color of the Red Sea is associated with heavy blooms of __________________
13. In carbon cycle flow of energy is _________________
14. The primary producers transform radiant energy into heat energy.
15. Protozoa and other minute animal life are known as ____________________
16. The coastal adjunct of the marine ecosystem is __________________
17. Purple and green sulfur bacteria use ___________________ as the electron donor to reduce carbon dioxide.
18. The degree of salinity in freshwater is nearly zero.
19. Large spiraling surface currents in the ocean that tend to aggregate and retain nutrients are known as _______________
20. Which of the following processes is performed by Thiobacillus thiooxidans?
21. Which of the following conditions decreases the level of denitrification?
22. Which of the following is subterranean water?
23. Which among the following develop in the upper portion of the Winogradsky column?
24. Which of the following techniques is used for identification and enumeration of algae, bacteria, protozoa?
25. Aquatic bacteria tend to be Gram-negative.

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