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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 aquatic organisms contribute in a small amount to the shallow estuary food web?
2. Cellulose is degraded to cellobiose by the enzyme __________________
3. Which of the following techniques can be used to separate different-size fractions of the aquatic microbial community?
4. Which of the following techniques is used for identification and enumeration of algae, bacteria, protozoa?
5. Phytoplanktonic organisms are non-motile.
6. Thermus aquaticus, a common bacterial inhabitant generally prevails in temperatures of ____________
7. The dominant mineral particles in most soils are compounds of _____________
8. Primary producers are found growing in which of the following layers of water?
9. Which of the following is subterranean water?
10. Microbial inhabitants of the bottom region of a body of water are referred to as ________________
11. Which of the following organisms are known to grow on the surfaces of freshly exposed rocks?
12. The Chesapeake Bay, one of the world’s major estuarine system serves as the receiving basin for how many rivers?
13. Which of the following processes is performed by Thiobacillus thiooxidans?
14. Parasitism results from competition among organisms for essential nutrients.
15. The microorganisms from lakes and rivers can grow at a salt concentration of _________
16. Purple and green sulfur bacteria use ___________________ as the electron donor to reduce carbon dioxide.
17. Which of the following are not the features of component II of nitrogenase enzyme complex?
18. Cellobiose is metabolized directly by many microorganisms.
19. Which among the following is not an ammonia-oxidizing bacteria?
20. The Winogradsky column experiment is done in the dark.
21. Which of the following is symbiotic nitrogen fixing bacteria?
22. Which among the following develop in the upper portion of the Winogradsky column?
23. Which of the following layer is composed of soft mud or ooze?
24. What amount of dry organic matter is produced by deep ocean areas?
25. Which of the following types of association is present among Staphylococcus aureus and Aspergillus terreous?