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Microbes in Human Welfare — NEET UG Biology PYQs

21 previous year questions from Microbes in Human Welfare with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

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Microbes in Human Welfare — NEET UG Biology PYQs

The microbes which are used as biocontrol agents of pests include __________.

Which of the following forms hartig-net in the intercellular spaces of root cortex?

Which one of the following is INCORRECT about organic fertilizers and biofertilizers?

In sewage treatment, formation of activated sludge takes place during ___________.

(Terror of Bengal) 'Water hyacinth' is controlled by using the fungus __________.

Microbial source for the production of enzyme invertase is __________.

Some of the alcoholic beverages are wine, beer, whisky, rum and brandy. How many of these are produced without distillation?

The correct sequence of steps in Bio-gas production is ________.

The biofertilizer ________ supplies nitrogen and antibiotics into the soil.

Which one of the following pair is INCORRECTLY matched?

Dosa, Dhokla and Idli are the fermented preparations of rice and black Gram with ________ species of bacteria.

Which one of the following biofertilizer makes the plant associated with them grow luxuriantly in less irrigated lands?

Identify correct statements: Statement (I): Azotobacter is a free living, nitrogen-fixing bacteria. Statement (II): It is an aerobic, non-photosynthetic, non-nodule-forming bacteri

Microbial source of antibiotic terramycin is -------------.

Match List I with List II List I (Microbes) List II (Industrial products) (A). Aspergillus niger (I). Enzyme-Invertase (B). Pseudomonas denitrificans (II). Citric acid (C). Sacchar

Match List I with List II List I (Biocontrol organism) List II (Target pest) (A). Bacillus thuringiensis (I). Grass hopper (B). Beauveria bassiana (II). Gypsy moth (C). Nosema lacu

Distillation process is involved in

Which of the following bioherbicide can be used if a lake is abundantly covered by water hyacinth plants ?

Match Column I containing names of antibiotics with Column II containing their microbial sources. Column I (Names of antibiotics) Column II (Microbial source) (A) Chloromycetin (I)

During secondary treatment of sewage, the masses of bacteria held together by fungal hyphae to form mesh like structures called __________.

Which of the following groups of bacteria are used in the commercial production of Yoghurt?