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Microbes In Human Welfare

124 Questions Start Allen Test
All Exams Allen
Q101 Allen ANALYTICAL QUESTIONS MCQ
Use of biofertilizer is the part of:-
A.
Inorganic farming
B.
Organic farming
C.
Energy cropping
D.
Energy plantation
Q102 Allen ANALYTICAL QUESTIONS MCQ
Members of which of the following fungal genus mainly participate in the mycorrhiza formation?
A.
Azotobacter
B.
Fusarium
C.
Rhizopus
D.
Glomus
Q103 Allen ANALYTICAL QUESTIONS MCQ
Which of the following is not an advantage of mycorrhiza?
A.
Phosphorus absorption
B.
Resistance to root borne pathogens
C.
Nitrogen fixation
D.
Tolerance to salinity and drought
Q104 Allen ANALYTICAL QUESTIONS MCQ
Cultivation of which of the following crop plant specially get benefitted by application of cyanobacteria?
A.
Maize
B.
Legumes
C.
Wheat
D.
Rice
Q105 Allen ANALYTICAL QUESTIONS MCQ
Which one of the following is being tried in India as a biofuel substitute for fossil fuels?
A.
Jatropha
B.
Musa
C.
Aegilops
D.
Azadirachta
Q106 Allen ANALYTICAL QUESTIONS MCQ
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
A.
Aspergillus niger - citric acid
B.
Yeast - Statins
C.
Acetobacter aceti - acetic acid
D.
Clostridium butylicum - lactic acid
Q107 Allen ANALYTICAL QUESTIONS MCQ
Read the following statement having two blanks (A and B): "A drug used for ____(A)____ patients is obtained from a species of the organism ____(B)____." The one correct option for the two blanks is:-
A.
AIDS - Pseudomonas
B.
Heart - Penicillium
C.
Organ-transplant - Trichoderma
D.
Swine flu - Monascus
Q108 Allen ANALYTICAL QUESTIONS MCQ
Yeast is used in the production of :-
A.
Bread and beer
B.
Cheese and butter
C.
Citric acid and lactic acid
D.
Lipase and pectinase
Q109 Allen ANALYTICAL QUESTIONS MCQ
A patient brought to a hospital with myocardial infarction is normally immediately given :-
A.
Cyclosporin-A
B.
Statins
C.
Penicillin
D.
Streptokinase
Q110 Allen ANALYTICAL QUESTIONS MCQ
Which one of the following is an example of carrying out biological control of pests/diseases using microbes?
A.
Bt-Cotton to increase cotton yield
B.
Lady bird beetle against aphids in mustard
C.
Trichoderma sp. against certain plant pathogens.
D.
Nucleopolyhedrovirus against white rust in Brassica
Q111 Allen ANALYTICAL QUESTIONS MCQ
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are ones categorised as:-
A.
Chemosynthetic autotrophs
B.
Heterotrophic bacteria
C.
Cyanobacteria
D.
Archaebacteria
Q112 Allen ANALYTICAL QUESTIONS MCQ
Monascus purpureus is a yeast used commercially in the production of :-
A.
citric acid
B.
blood cholesterol lowering statins
C.
ethanol
D.
streptokinase for removing clots from the blood vessels.
Q113 Allen ANALYTICAL QUESTIONS MCQ
In gobar gas, the maximum amount is that of:
A.
Propane
B.
Carbon dioxide
C.
Butane
D.
Methane
Q114 Allen ANALYTICAL QUESTIONS MCQ
Consider the following four statements (a-d) and select the option which includes all the correct ones only:-
(a) Single cell Spirulina can produce large quantities of food rich in protein, minerals, vitamins etc.
(b) Body weight-wise the microorganism Methylophilus methylotrophus may be able to produce several times more proteins than the cows per day.
(c) Common button mushrooms are a very rich source of vitamin C.
(d) A rice variety has been developed which is very rich in calcium.
Options :
A.
Statements (b), (c) and (d)
B.
Statements (a), (b)
C.
Statements (c), (d)
D.
Statements (a), (c) and (d)
Q115 Allen ANALYTICAL QUESTIONS MCQ
A good producer of citric acid is :-
A.
Saccharomyces
B.
Aspergillus
C.
Pseudomonas
D.
Clostridium
Q116 Allen ANALYTICAL QUESTIONS MCQ
During sewage treatment, biogases are produced which include :-
A.
hydrogen sulphide, nitrogen, methane
B.
methane, hydrogen sulphide, carbon dioxide
C.
methane, oxygen, hydrogen sulphide
D.
hydrogen sulphide, methane, sulphur dioxide
Q117 Allen ANALYTICAL QUESTIONS MCQ
Sewage purification is performed by :-
A.
Microbes
B.
Fertilisers
C.
Antibiotics
D.
Antiseptics
Q118 Allen ANALYTICAL QUESTIONS MCQ
Biological Oxygen Demand (BOD) is a measure of :-
A.
Industrial wastes poured into water bodies
B.
Extent to which water is polluted with organic compounds
C.
Amount of carbon monooxide inseparably combined with haemoglobin
D.
Amount of oxygen needed by green plants during night
Q119 Allen ANALYTICAL QUESTIONS MCQ
Assertion (A) : Trichoderma polysporum is an important fungus. Reason (R) : Cyclosporin-A is obtained from this fungus which is used as an immunosuppressive agent in organ transplant.
A.
Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
B.
Assertion is True but the Reason is False.
C.
Assertion is False but the Reason is True.
D.
Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
Q120 Allen ANALYTICAL QUESTIONS MCQ
Statement-I : Micro-organisms such as Lactobacillus and others commonly called lactic acid bacteria(LAB) grow in milk and convert it to curd. Statement-II : In our stomach, the LAB play very beneficial role in checking disease causing microbes.
A.
Both Statement-I and Statement-II are correct.
B.
Statement-I is correct and Statement-II is incorrect.
C.
Statement-I is incorrect and Statement-II is correct.
D.
Both Statement-I and Statement-II are incorrect.
Q121 Allen ANALYTICAL QUESTIONS MCQ
Statement-I: Methanogens grow aerobically on cellulosic material, produces large amount of methane along with CO2 and H2. Statement-II: Human beings are not able to digest cellulose.
A.
Both Statement-I and Statement-II are correct.
B.
Statement-I is correct and Statement-II is incorrect.
C.
Statement-I is incorrect and Statement-II is correct.
D.
Both Statement-I and Statement-II are incorrect.
Q122 Allen ANALYTICAL QUESTIONS MCQ
Assertion (A): Currently large number of biofertilizers are available commercially in the market and farmers use these biofertilizers in their field to replenish soil nutrients. Reason (R): Use of biofertilizers can reduce dependence on chemical fertilizers and so as environmental pollution.
A.
Both A and R are true and R is the correct explanation of A
B.
Both A and R are true but R is NOT the correct explanation of A
C.
A is true but R is false
D.
A is false but R is true
Q123 Allen ANALYTICAL QUESTIONS MCQ
Complete the following sentences :-are chemical substance, which are produced by some microbes and can kill or retard the growth of other microbes.
A.
Antibiotics
B.
Fermented Beverages
C.
Fruit juice
D.
Enzymes
Q124 Allen ANALYTICAL QUESTIONS MCQ
Find the wrongly matched pair.
A.
Roquefort cheese – Ripened by a fungus
B.
Swiss cheese – Has large holes that are produced by a fungus
C.
Penicillin – Obtained from a mould
D.
Ethanol – Produced by yeast