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Class 8 Science Chapter 2 Microorganisms Friend And Foe Quiz 6 (25 MCQs)

Quiz Instructions

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1. Microbes are classified into ..... major groups
2. What is the study of microorganisms called?
3. Consumption of food spoiled by some micro-organisms causes .....
4. Name the First Antibiotic discovered?
5. Which of the following is a common antibiotic?
6. The ammonia is converted to nitrates by .....
7. Which of these would be considered a decomposer?
8. Anthrax is a dangerous disease caused by bacteria
9. Lower spirogyra
10. Which of the following bruises help to keep nitrogen in the atmosphere for the balance of nitrogen? Which of The Following Microorganism Picrowing Microorganism An Important Role In the ATMOSPEree?
11. Which bacteria helps in settling of curd?
12. Which of the following liquids is added to preserve food?
13. What process is when a week is placed for a week in the grape juice? What process is for a week? What process teakes Place Wen Yeast is Added To Grape and Left For A Week?
14. Plant viruses are
15. How do antibiotics affect beneficial bacteria in the body?
16. The process in which microorganism like lactobacillus convert lactose(sugar present in milk) into lactic acid is called:
17. What is a common method of food preservation?
18. The Fermentation process is discovered by
19. ..... is a dangerous human and cattle disease caused by bacterium
20. Which group of panicopus and peniculium adulthood? Rhizopus and penicillium belongs to which Group of Microorganisms?
21. How do microorganisms contribute to cleaning the environment?
22. What is the main function of vaccines?
23. Female Aedes mosquito helps in the carriage of .....
24. Examples of Multicellular Microorganism are
25. Which microorganism is used in the production of bread?
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