Microbes in Human Welfare MCQ. We covered all the Microbes in Human Welfare MCQ in this post for free so that you can practice well for the exam.
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MCQ on Microbes in Human Welfare for NEET Students
In case of cattle selected for inbreeding, a superior buffalo
(A) gives rise to a superior progeny
(B) produces more milk per lactation
(C) shows resistance to diseases
(D) has high-quality lean meat with less lipid
Option b – produces more milk per lactation
……. is an alcoholic beverage produced without distillation.
(A) Wine
(B) Brandy
(C) Whisky
(D) Rum
Option a – Wine
Which of the following occurs during the production of curd from milk?
(A) Coagulation of milk proteins
(B) Production of lactic acid
(C) Increase in vitamin B12 content
(D) All of the above
Option d – All of the above
Identify which of the following statement is INCORRECT.
(A) Methanogens are present in the excreta of cattle.
(B) Methanobacterium grows aerobically on cellulosic materials, producing CH4, CO2, and H₂.
(C) Methylophilus methylotrophs are used as a source of single-cell protein.
(D) Methanogens present in sludge during sewage treatment digest the sludge to form biogas.
Option b – Methanobacterium grows aerobically on cellulosic materials, producing CH4, CO2, and H₂.
Read the following statements and choose the correct option. Statement I: Biogas plant has an outlet connected to a pipe that supplies biogas to nearby houses. Statement II: The spent slurry is fed into the biogas plant through an inlet connected to the tank.
(A) Statement I is correct and statement II is incorrect.
(B) Statement II is correct and statement I is incorrect.
(C) Both statement I and statement II are correct.
(D) Both statement I and statement II are incorrect.
Option a – Statement I is correct and statement II is incorrect.
Keeping beehives in crop fields during the flowering period
(A) improves honey yield
(B) improves crop yield
(C) increases pollination
(D) all of the above
Option d – all of the above
Which of the following is NOT an application of the products of apiculture?
(A) Polishes
(B) Medicines
(C) Cosmetics
(D) Oils
Option d – Oils
Idli dough has a puffed appearance due to
(A) production of ethanol
(B) production of CO₂
(C) production of butyric acid
(D) production of lactic acid
Option b – production of CO₂
Which of the following is NOT a character that has been incorporated into crop plants to enhance plant breeding?
(A) Increased tolerance to insect pests
(B) Increased crop yield
(C) Increased pollination efficiency
(D) Increased tolerance to environmental stress
Option c – Increased pollination efficiency
Read the following statements and choose the correct option. Statement I: Treatment of wastewater by heterotropic microbes is done before it can be released into natural water bodies. Statement II: The greater the biological oxygen demand of water, the safer it is for release into natural water bodies.
(A) Statement I is correct and statement II is incorrect.
(B) Statement II is correct and statement I is incorrect.
(C) Both statement I and statement II are correct.
(D) Both statement I and statement II are incorrect.
Option a – Statement I is correct and statement II is incorrect.
If a plant is infected by a virus, which of the following part is cultured in vitro to obtain a virus-free plant?
(A) Stem
(B) Meristem
(C) Leaves
(D) Flowers
Option b – Meristem
Which of the following is NOT a part of secondary/biological sewage treatment?
(A) Floating debris
(B) Primary effluent
(C) Activated sludge
(D) Flocs
Option a – Floating debris
Which of the following is a fungal biofertilizer?
(A) Oscillatoria
(B) Glomus
(C) Rhizobium
(D) Nostoc
Option b – Glomus
Which of the following is a variety of cauliflower that is resistant to black rot disease?
(A) Pusa Shubhra
(B) Pusa Swarnim
(C) Pusa Komal
(D) Pusa Sadabahar
Option a – Pusa Shubhra
The process of increasing the nutritional value of crops is called
(A) micropropagation
(B) biofortification
(C) mutation breeding
(D) somatic hybridisation
Option b – biofortification
Which of the following statement is INCORRECT with respect to Baculoviruses?
(A) They are pathogens.
(B) They are effective biocontrol agents.
(C) Trichoderma is a type of Baculovirus.
(D) They act in a species-specific manner.
Option c – Trichoderma is a type of Baculovirus.
Read the following statements and select the correct option. Statement I: Alexander Fleming was working on Staphylococci when he discovered penicillin. Statement II: Penicillin is an antibiotic produced by the mold Penicillium notatum.
(A) Statement I is correct and statement II is incorrect.
(B) Statement II is correct and statement I is incorrect.
(C) Both statement I and statement II are correct.
(D) Both statement I and statement II are incorrect.
Option c – Both statement I and statement II are correct.
Which of the following breeds was developed by cross-breeding?
(A) Merino rams
(B) Hissardale sheep
(C) Bikaneri ewes
(D) Mule
Option b – Hissardale sheep
Evaluation of the germplasm is essential
(A) to identify disease-resistant plants.
(B) before breeding a new variety of crops.
(C) to identify plants with the desired combination of characters.
(D) all of the above.
Option d – all of the above.
Norman E. Borlaug developed which variety of wheat?
(A) Sonalika
(B) Kalyan Sona
(C) Semi-dwarf wheat
(D) Ratna
Option c – Semi-dwarf wheat
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