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Microbes in Human Welfare

76 Questions
All Exams NEET AIIMS
2011 NEET MCQ
AIPMT 2011 Prelims
Which one of the following is not a biofertilizer ?
A.
Agrobacterium
B.
Nostoc
C.
Rhizobium
D.
Mycorrhiza
2011 NEET MCQ
AIPMT 2011 Prelims
An organism used as a Biofertilizer for raising soyabean crop is :
A.
Azotobacter
B.
Azospirillum
C.
Nostoc
D.
Rhizobium
2010 NEET MCQ
AIPMT 2010 Mains
An example of endomycorrhiza is -
A.
Nostoc
B.
Rhizobium
C.
Glomus
D.
Agaricus
2010 NEET MCQ
AIPMT 2010 Prelims
The common nitrogen-fixer in paddy fields is –
A.
Azospirillum
B.
Frankia
C.
Rhizobium
D.
Oscillatoria
2010 NEET MCQ
AIPMT 2010 Prelims
A common biocontrol agent for the control of plant diseases is –
A.
Bacillus thuringiensis
B.
Trichoderma
C.
Glomus
D.
Baculovirus
2010 NEET MCQ
AIPMT 2010 Prelims
Which one of the following not used in organic farming ?
A.
Earthworm
B.
Oscillatoria
C.
Snail
D.
Glomus
2010 NEET MCQ
AIPMT 2010 Prelims
Select the correct statement from the following:
A.
Methanobacterium is an aerobic bacterium found in rumen of cattle
B.
Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
C.
Biogas, commonly called gobar gas, is pure methane
D.
Biogas is produced by the activity of aerobic bacteria on animal waste
2009 NEET MCQ
AIPMT 2009
Which one of the following pairs is wrongly matched ?
A.
Detergents – lipase
B.
Fruit juice – pectinase
C.
Alcohol – nitrogenase
D.
Textile – amylase
2009 NEET MCQ
AIPMT 2009
Which of the following is not used as a biopesticide ?
A.
Bacillus thringiensis
B.
Trichoderma harzianum
C.
Nuclear Polyhedral Virus (NPV)
D.
Xanthomonas Campestris
2008 NEET MCQ
AIPMT 2008
Trichoderma harzianum has proved a useful microorganism for:
A.
biological control of soil-borne plant pathogens
B.
reclamation of wastelands
C.
gene transfer in higher plants
D.
bioremediation of contaminated soils
2008 NEET MCQ
AIPMT 2008
Nitrogen fixation in root nodules of Alnus is brought about by:
A.
Bradyrhizobium
B.
Frankia
C.
Clostridium
D.
Azorhizobium
2008 NEET MCQ
AIPMT 2008
Which one of the following proved effective for biological control of nematodal disese in plants?
A.
Pisolithus tinctorius
B.
Paecilomyces lilacinus
C.
Pseudomonas cepacia
D.
Gliocladium virens
2007 NEET MCQ
AIPMT 2007
Probiotics are-
A.
Cancer inducting microbes
B.
New kind of food allergens
C.
Live microbial food supplement
D.
Safe antibiotics
2007 NEET MCQ
AIPMT 2007
Which one of the following pairs is wrongly matched ?
A.
Methanogens – Gobar gas
B.
Yeast – Ethanol
C.
Streptomycetes – Antibiotic
D.
Coliforms – Vinegar
2004 NEET MCQ
AIPMT 2004
A major component of gobar gas is
A.
ethane
B.
methane
C.
butane
D.
ammonia
2004 NEET MCQ
AIPMT 2004
Which one of the following pairs is not correctly matched ?
A.
Spirulina – Single cell protein
B.
Streptomyces – Antibiotic
C.
Rhizobium – Biofertilizer
D.
Serratia – Drug addiction
2004 NEET MCQ
AIPMT 2004
Dough kept overnight in warm weather becomes soft and spongy because of :-
A.
Cohesion
B.
Absorption of carbon dioxide from atmosphere
C.
Osmosis
D.
Fermentation
2004 NEET MCQ
AIPMT 2004
The most thoroughly studied of the known bacteria-plant interactions is the :-
A.
Nodulation of Sesbania stems by nitrogen fixing bacteria
B.
Cyanobacterial symbiosis with some aquatic ferns
C.
Plant growth stimulation by phosphate– solubilising bacteria
D.
Gall formation on certain angiosperms by Agrobacterium
2003 NEET MCQ
AIPMT 2003
During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded : -
A.
Lignin
B.
Cellulose
C.
Hemi-cellulose
D.
Lipids
2003 NEET MCQ
AIPMT 2003
Maximum application of animal cell culture technology today is in the production of : -
A.
Interfereons
B.
Vaccines
C.
Edible proteins
D.
Insulin
2002 NEET MCQ
AIPMT 2002
During the formation of bread it becomes porous due to release of CO2 by the action of : -
A.
Protozoans
B.
Bacteria
C.
Yeast
D.
Virus
2002 NEET MCQ
AIPMT 2002
Which bacteria is utilized in Gober gas plant ?
A.
Nitrifying bacteria
B.
Methanogens
C.
Ammonifying bacteria
D.
Denitrifying bacteria
2001 NEET MCQ
AIPMT 2001
Which of the following is true pair of biofertilizers ?
A.
Nostoc and legume
B.
Rhizobium and grasses
C.
Salmonella & E. Coli
D.
Azolla and BGA
2001 NEET MCQ
AIPMT 2001
Spoilage of oil can be detected by which fatty acid : -
A.
Linolenic acid
B.
Erusic acid
C.
Linoleic acid
D.
Oleic acid
2000 NEET MCQ
AIPMT 2000
Which aquatic fern is used to increase the yield in paddy crop ?
A.
Salvinia
B.
Isoetes
C.
Marsilea
D.
Azolla
2000 NEET MCQ
AIPMT 2000
Which of the following is used to manufacture ethanol from starch ?
A.
Saccharomyces
B.
Lactobacillus
C.
Azotobactor
D.
Penicilline