Biology Practice: Economic Importance of Bacteria and Fungi (Mock Test 2 - Intermediate)
1. In the process of "Tanning" of leather, bacteria are used to:
2. Which specific antibiotic is effective against many Gram-positive bacteria and was the first to be mass-produced?
3. "Retting" is a process used in the textile industry to obtain fibers like Jute. This is achieved by:
4. Which of the following fungi is known as "Baker's Yeast"?
5. "Nitrification" involves two steps. In the first step, Ammonia is converted to Nitrites by:
6. Why is Lactobacillus considered a "Probiotic"?
7. The disease "Late blight of Potato" is caused by which fungus?
8. Which of these is a function of "Free-living" nitrogen-fixing bacteria like Azotobacter?
9. Yeast carries out fermentation to produce ethanol and $CO_2$. This happens in the:
10. "Cheese" is produced by using bacteria to coagulate the milk protein called:
11. A fungicide commonly used to treat plant diseases caused by fungi is:
12. Which part of the bacterium is mainly affected by the action of antibiotics like Penicillin?
13. Putrefying bacteria are essential for the environment because they:
14. Which bacterium is used specifically in the "Curing" of tea leaves to develop flavor?
15. "Toxoids" are used in vaccines for diseases like Tetanus. They are essentially:
16. Single Cell Protein (SCP) can be obtained from certain microorganisms like:
17. Denitrifying bacteria like Pseudomonas are considered harmful to farmers because they:
18. "Aflatoxins" are dangerous toxins produced by which fungus during food storage?
19. In the Nitrogen Cycle, the conversion of Nitrites into Nitrates is performed by:
20. The "Swiss Cheese" has large holes due to the production of $CO_2$ by which bacterium?
