1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Continuous addition of sugars in 'fed batch' fermentation is done to :
A
obtain antibiotics
B
produce methane
C
purify enzymes
D
degrade sewage
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
An example of endomycorrhiza is -
A
Nostoc
B
Rhizobium
C
Glomus
D
Agaricus
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
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
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
The common nitrogen-fixer in paddy fields is –
A
Azospirillum
B
Frankia
C
Rhizobium
D
Oscillatoria
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