Q51
Allen
2. (Previous Year Questions)
MCQ
What gases are produced in anaerobic sludge digesters :-
A.
Methane and $CO_{2}$ only
B.
Methane, Hydrogen Sulphide and $CO_{2}$
C.
Methane, Hydrogen Sulphide and $O_{2}$
D.
Hydrogen Sulphide and $CO_{2}$
Q52
Allen
2. (Previous Year Questions)
MCQ
High value of BOD (Biochemical Oxygen Demand) indicates that :-
A.
Water is highly polluted
B.
Water is less polluted
C.
Consumption of organic matter in the water is higher by the microbes
D.
Water is pure
Q53
Allen
2. (Previous Year Questions)
Match the Columns
Match the following list of microbes and their importance Column-I with Column-2
| Column-I | Column-II | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Correct Answer: B
Explanation:
B
Q54
Allen
2. (Previous Year Questions)
MCQ
Which of the following is wrongly matched in the given table?
A.
Microbe-Trichoderma polysporum, Product-Cyclosporin A, Application-immunosuppressive drug
B.
Microbe-Monascus purpureus, Product-Statins, Application-lowering of blood cholesterol
C.
Microbe-Streptococcus, Product-Streptokinase, Application-removal of clot from blood vessel
D.
Microbe-Clostridium butylicum, Product-Lipase, Application-removal of oil stains
Q55
Allen
2. (Previous Year Questions)
MCQ
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the :-
A.
Halophiles
B.
Thermoacidophiles
C.
Methanogens
D.
Eubacteria
Q56
Allen
2. (Previous Year Questions)
MCQ
A river with an inflow of domestic sewage rich in organic waste may result in :-
A.
Drying of the river very soon due to algal bloom.
B.
Increased population of aquatic food web organisms.
C.
An increased production of fish due to biodegradable nutrients.
D.
Death of fish due to lack of oxygen.
Q57
Allen
2. (Previous Year Questions)
MCQ
Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from :-
A.
Petroleum industry
B.
Sugar industry
C.
Domestic sewage
D.
Dairy industry
Q58
Allen
2. (Previous Year Questions)
Match the Columns
Match Column-I with Column-II and select the correct option using the codes given below:-
| Column-I | Column-II | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
a-iv,b-iv,c-ii,d-iii
B.
a-iii,b-iv,c-i,d-ii
C.
a-iii,b-i,c-ii,d-iv
D.
a-iii,b-i,c-iv,d-ii
Q59
Allen
2. (Previous Year Questions)
MCQ
The source of cyclosporin-A is :-
A.
Acetobacter aceti
B.
Saccharomyces cerevisiae
C.
Aspergillus niger
D.
Trichoderma polysporum
Q60
Allen
2. (Previous Year Questions)
MCQ
Statins commercially used as blood cholesterol lowering agents are produced by:-
A.
Agrobacterium tumefaciens
B.
Trichoderma polysporum
C.
Monascus purpureus
D.
Trichoderma viridae
Q61
Allen
2. (Previous Year Questions)
MCQ
Which of the following is a free-living biocontrol microbial agent for plant pathogen?
A.
Mucor
B.
Glomus
C.
Trichoderma
D.
Rhizobium
Q62
Allen
2. (Previous Year Questions)
MCQ
Biological control agent obtained from :-
A.
Bacillus thuringiensis
B.
E. coli
C.
Agrobacterium tumefaciens
D.
Meloidogyne incognitia
Q63
Allen
2. (Previous Year Questions)
MCQ
Which of the following is correctly matched for the product produced by them?
A.
Methanobacterium : Lactic acid
B.
Penicillium notatum : Acetic acid
C.
Saccharomyces cerevisiae : Ethanol
D.
Acetobacter aceti : Antibiotics
Q64
Allen
2. (Previous Year Questions)
MCQ
Which of the following in sewage treatment removes suspended solids?
A.
Secondary treatment
B.
Primary treatment
C.
Sludge treatment
D.
Tertiary treatment
Q65
Allen
2. (Previous Year Questions)
MCQ
Conversion of milk to curd improves its nutritional value by increasing the amount of
A.
Vitamin D
B.
Vitamin A
C.
Vitamin B $_{12}$
D.
Vitamin E
Q66
Allen
2. (Previous Year Questions)
MCQ
Match the following organisms with the products they produce:-
| Column-I | Column-II | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
a-ii, b-iv, c-v, d-iii
B.
a-iv, b-iv, c-ii, d-i
C.
a-iii,b-iv, c-v, d-i
D.
a-ii, b-i, c-iii, d-v
Q67
Allen
2. (Previous Year Questions)
MCQ
Which of the following can be used as a biocontrol agent in the treatment of plant disease?
A.
Trichoderma
B.
Chlorella
C.
Anabaena
D.
Lactobacillus
Q68
Allen
2. (Previous Year Questions)
MCQ
Which of the following is a commercial blood cholesterol lowering agent?
A.
Cyclosporin A
B.
Statin
C.
Streptokinase
D.
Lipases
Q69
Allen
2. (Previous Year Questions)
MCQ
Select the correct group of biocontrol agents:
A.
Bacillus thuringiensis, Tobacco mosaic virus, Aphids
B.
Trichoderma, Baculovirus, Bacillus thuringiensis
C.
Oscillatoria, Rhizobium, Trichoderma
D.
Nostoc, Azospirillum, Nucleopolyhedrovirus
Q70
Allen
2. (Previous Year Questions)
MCQ
A biocontrol agent to be a part of an integrated pest management should be :-
A.
Species-specific and symbiotic
B.
Free living and broad spectrum
C.
Narrow spectrum and symbiotic
D.
Species-specific and inactive on non-target organisms
Q71
Allen
2. (Previous Year Questions)
MCQ
Which of the following statements about methanogens is not correct?
A.
They can be used to produce biogas.
B.
They are found in the rumen of cattle and their excreta
C.
They grow aerobically and breakdown cellulose-rich food.
D.
They produce methane gas.
Q72
Allen
2. (Previous Year Questions)
MCQ
Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?
A.
Aspergillus and Rhizopus
B.
Rhizobium and Rhizopus
C.
Cyanobacteria and Rhizobium
D.
Aspergillus and Cyanobacteria
Q73
Allen
2. (Previous Year Questions)
MCQ
Match the following columns and select the correct option:-
| Column-I | Column-II | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
a-iv, b-iii, c-ii, d-i
B.
a-iii, b-iv, c-ii, d-i
C.
a-ii, b-i, c-iv, d-iii
D.
a-i, b-ii, c-iv, d-iii
Q74
Allen
2. (Previous Year Questions)
MCQ
Which of the following is put into Anaerobic sludge digester for further sewage treatment?
A.
Activated sludge
B.
Primary sludge
C.
Floating debris
D.
Effluents of primary treatment
Q75
Allen
2. (Previous Year Questions)
MCQ
For the commercial and industrial production of citric acid, which of the following microbes is used?
A.
Aspergillus niger
B.
Lactobacillus sp.
C.
Saccharomyces cerevisiae
D.
Clostridium butylicum