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Microbes in Human Welfare : Class – 12th (Biology) Practice Test | MCQs for NEET

Diksha Bhatla May 13, 2022 5.4k views 25 Questions 7 Attempts
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Q1 of 25
Q1. Integrated Pest Management (IPM) discourages the excessive used of
Q2 of 25
Q2. Which of the following is not used as a biopesticide ?
Q3 of 25
Q3. Organic farming does not include
Q4 of 25
Q4. Organic farming includes
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Q5. Living organisms used to enrich the nutrient quality of the soil are called as
Q6 of 25
Q6. Biofertilisers are
Q7 of 25
Q7. Biofertilisers are the living organisms which
Q8 of 25
Q8. Which one of the following can be used as biofertiliser in cotton field ?
Q9 of 25
Q9. The symbiotic association between fungi and roots of higher plants is referred to as
Q10 of 25
Q10. Cyanobacteria are
Q11 of 25
Q11. Enzyme which has the fibrinolytic effect is
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Q12. Statins used for lowering blood cholesterol level are extracted from
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Q13. Monascus purpureus is a yeast commercially used in the production of
Q14 of 25
Q14. During the primary treatment of sewage, solid particles that settle down are called
Q15 of 25
Q15. The purpose of biological treatment of waste water is to
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Q16. The masses of bacteria held together by slime and fungal filaments to form mesh-like structures are called as
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Q17. BOD is………..in polluted water and in potable water.
Q18 of 25
Q18. n the sewage treatment, bacterial floes are allowed to sediment in a settling tank. This sediment is called as
Q19 of 25
Q19. Which of the following steps is taken by the Ministry of Environment and Forests to protect rivers from water pollition ?
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Q20. Methanogens, growing anaerobically on cellulosic material produce
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Q21. Which of the following bacteria is present in the rumen of cattle ?
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Q22. Process of biogas production is
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Q23. Biogas is produced by
Q24 of 25
Q24. Dragonflies are used to get rid of
Q25 of 25
Q25. A microbial biocontrol agent that can be used to control butterfly caterpillars is

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This practice test includes 25 important multiple-choice questions (MCQs) with answers and explanations from the Class 12th Biology Chapter – Microbes In Human Welfare. These questions are very helpful for NEET and other competitive entrance exams after the 12th. 

Written & Verified by Diksha Bhatla

Expert Faculty

Diksha Bhatla is a Pharmacy graduate and a passionate academic content creator currently pursuing higher studies in Pharmacy. She contributes to SoloTutes by creating educational content, practice tests, and study resources for students preparing for NEET and Pharmacy examinations. With a strong understanding of **Biology, Chemistry, and Pharmacy**, Diksha focuses on developing clear, exam-oriented content that helps students strengthen their concepts and improve their preparation. At SoloTutes, she writes educational articles and develops practice questions and tests designed to support students in their learning and competitive exam preparation.

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