NEET
Biology
Microbes in Human Welfare
Previous Years Questions

MCQ (Single Correct Answer)

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Spirulina is a microbe that ...
Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A :
Match List-I with List-II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:...
Which of the following is put into Anaerobic sludge digester for further sewage treatment?
Match the following columns and select the correct option. Column-I Column-II (a) Clostridium butylicum (i) Cyclosporin...
What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm?
Select the correct group of biocontrol agents.
Match the following organisms with the products they produce : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-style:solid;border-wid...
Thiobacillus is a group of bacteria helpful in carrying out :
Which of the following can be used as a biocontrol agent in the treatment of plant disease?
Which of the following is a commercial blood cholesterol lowering agent?
Conversion of milk to curd improves its nutritional value by increasing the amount of
Select the mismatch :
Which of the following in sewage treatment removes suspended solids ?
Which of the following is correctly matched for the product produced by them ?
Match Column-I with Column-II and select the correct option using the codes given below – .tg {border-collapse:collapse;border-spacing:0;width:100%}...
Which of the following is wrongly matched in the given table?
Match the following list of microbes and their importance - .tg {border-collapse:collapse;border-spacing:0;width:100%} .tg td{font-family:Arial, sa...
The guts of cow and buffalo possess
Which one of the following fungi contains hallucinogens?
An alga which can be employed as food for human being is :
What gases are produced in anaerobic sludge digesters ?
Microbe used for biocontrol of pest butterfly caterpillars is :
A good producer of citric acid is
In gobar gas, the maximum amount is that of :
Read the following four statements (A-D) : (A) In transcription, adenosine pairs with uracil (B) Regulation of lac operon by repressor is referred to...
Consider the following four statements (a-d) and select the option which includes all the correct ones only : (a) Single cell Spirulina can produce l...
The domestic sewage in large cities :
A patient brought to a hospital with myocardial infarction is normally immediately given
Monascus purpureus is a yeast used commercially in the production of :
A nitrogen - fixing microbe associated with Azolla in rice fields is
Which one of the following is an example of carrying out biological control of pests/diseases using microbes ?
Yeast is used in the production of
Read the following statement having two blanks (A and B) : ''A drug used for ______ (A)___ patients is obtained from a species of the organism ______ ...
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct ?:
Consider the following statements (A-D) about organic farming : (A) Utilizes genetically modified crops like Bt cotton (B) Uses only naturally produc...
Continuous addition of sugars in 'fed batch' fermentation is done to :
An organism used as a Biofertilizer for raising soyabean crop is :
Which of the following is mainly produced by the activity of anaerobic bacteria on sewage ?
Which one of the following is not a biofertilizer ?
The most common substrate used in distilleries for the production of ethanol is :
Secondary sewage treatment is mainly a :
Ethanol is commercially produced through a particular speciesl of :
Organisms called Methanogens are most abundant in a :
An example of endomycorrhiza is -
The common nitrogen-fixer in paddy fields is –
Which one of the following not used in organic farming ?
A common biocontrol agent for the control of plant diseases is –
Select the correct statement from the following:
Which of the following is not used as a biopesticide ?
Which one of the following pairs is wrongly matched ?
Trichoderma harzianum has proved a useful microorganism for:
Nitrogen fixation in root nodules of Alnus is brought about by:
Which one of the following proved effective for biological control of nematodal disese in plants?
Probiotics are-
Which one of the following pairs is wrongly matched ?
Dough kept overnight in warm weather becomes soft and spongy because of :-
The most thoroughly studied of the known bacteria-plant interactions is the :-
Which one of the following pairs is not correctly matched ?
A major component of gobar gas is
Maximum application of animal cell culture technology today is in the production of : -
During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded : -
Which bacteria is utilized in Gober gas plant ?
During the formation of bread it becomes porous due to release of CO2 by the action of : -
Which of the following is true pair of biofertilizers ?
Spoilage of oil can be detected by which fatty acid : -
Which aquatic fern is used to increase the yield in paddy crop ?
Which of the following is used to manufacture ethanol from starch ?
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