Chapter 10- Microbes In Human Welfare (Part- 1 )
1. Which of the following microbes is commonly used in the production of antibiotics?
- Escherichia coli
- Streptococcus pyogenes
- Penicillium notatum
- Saccharomyces cerevisiae
- 3 Clear All
2. Biogas is produced by the action of bacteria on:
- Animal dung
- Plant leaves
- Coal deposits
- Natural gas reserves
- 1 Clear All
3. Which of the following microorganisms is used in the production of vinegar?
- Lactobacillus acidophilus
- Saccharomyces cerevisiae
- Acetobacter aceti
- Aspergillus niger
- 3 Clear All
4. The process of converting atmospheric nitrogen into ammonia is called:
- Nitrification
- Nitrogen fixation
- Denitrification
- Ammonification
- 2 Clear All
5.Which of the following microorganisms is involved in the process of retting of fibers?
- Rhizobium
- Azotobacter
- Trichoderma
- Clostridium
- 3 Clear All
6. The use of microorganisms to clean up oil spills is an example of:
- Bioremediation
- Bioleaching
- Biopesticide production
- Biogas production
- 1 Clear All
7. Which of the following microorganisms is responsible for the fermentation of idli and dosa batter?
- Lactobacillus lactis
- Saccharomyces cerevisiae
- Streptococcus thermophilus
- Aspergillus oryzae
- 1 Clear All
8. Microbial insecticides are derived from:
- Bacteria
- Fungi
- Viruses
- Algae
- 3 Clear All
9. The process of converting sugar into alcohol is called:
- Fermentation
- Pasteurization
- Sterilization
- Denitrification
- 1 Clear All
10. Which of the following is an example of a biofertilizer?
- NPK fertilizer
- Urea fertilizer
- Vermicompost
- Rock phosphate
- 3 Clear All