MCQ ON BIORESOURCES (VOL1) 28.08.2020
1.
Gobar gas contains mainly
a) CH4 + CO2
b)
CH4 + O2
c)
CO2 + H2
d)
CO2 + SO2
2.
Antibiotics are mostly obtained from
a)
fungi
b)
actinomycetes
c)
cyanobacteria
d)
(a) and (b)
3.
Bioenergy is the energy obtained from
a)
biological sources b) coal
c)
petroleum d) natural gases
4.
The example of non-renewable source of energy is
a)
alcohol fuel b) petroleum c) biogas
d) fuel wood
5.
Beer is obtained from
a)
molasses b) grapes c) barley d) rye
6.
Which one of the following is used as biofertilizer?
a)
Mycoplasma
b)
DDT
c)
Lichen
d)
AMF
7.
Which is commonly considered as
pollution indicator?
a) AMF
b)
Lichen
c) Yeast
d)
None of the above
8.
Indicator of water pollution
a)
E. coli
b)
Chlorella
c)
Beggiatoa
d)
Ulothrix
9.
An example of bioinsecticide is
a)
Bacillus thuringiensis
b)
Utricularia
c)
Nepenthes
d)
all of the above
10.
Petro-crops are plants
a)
grown near oil fields
b)
used in refining crude oil
c)
whose fossil remains formed crude oil
d)
from which petrol like fuels can be derived
11.
A good fodder
a)
contains high dry matter
b)
is free from disease and pest
c)
has nutrient without toxicity
d)
all of the above
12.
Some workers believed that the unique smell of Ilsha Fish of Padma /Ganga River
is due to
a)
Excretory material of the fish
b)
Diatoms which inhabit on the surface of
the fish
c)
Pollutant
d)
None of these
13.
The residue left after methane production from cattle dung is
a)
burnt
b)
buried in land fills
c)
used as manure
d)
used in civil construction
14.
Domestic cooking gas cylinder is filled with
a)
alcohol
b)
diesel oil
c)
liquid petroleum gas
d)
coal gas
15.
Which of the following is included in biopesticide?
a)
Viruses and bacteria
b)
Viruses, bacteria and fungi
c)
Viruses, bacteria, fungi, protozoa and mites
d)
Viruses, bacteria, fungi and protozoa
16.
Which one thing is not true about antibiotics?
a)
The term “antibiotic” was coined by Selman Waksman in 1942
b)
First antibiotic was discovered by Alexander flemming
c)
Each ntibiotic is effective only against one particular kind of germ
d)
Some persons can be allergic to a particular antibiotic
17.
Which one of the following is non-symbiotic biofertilizer?
a)
Azotobacter
b)
Anabaena
c)
Rhizobium
d)
VAM
18.
Farmers have reported over 50% higher yields of rice by using the
biiofertilizer
a)
Azolla pinnata
b)
Cyanobacteria
c)
Legume-Rhyzobium symbiosis
d)
Mycorrhiza
19.
The aquatic ferm, which is an excellent biofertilizer is
a)
Azolla
b)
Salvinia
c)
Marsilia
d)
Pteridium
20.
Which of the following is pair of bio-fertilizers?
a)
Azolla and blue algae
b)
Nostoc and legumes
c)
Rhizobium and grasses
d)
Salmonella and E.coli
21.
Two microbes found to be very useful in genetic engineering are
a)
Vibrio cholera and a tailed
bacteriophage
b)
Diplococcus sp. and Pseudomonas sp.
c)
Crown gall bacterium and Caenorhabditis
elegans
d)
Escherichia coli and Agrobacterium tumefaciens
22.
Human insulin being commercially produced from a transgenic species of
a)
Echerichia
b)
Mycobacterium
c)
Rhizobium
d)
Saccharomyces
23.
A common biocontrol agent for the control of plant disease is
a)
Frankia
b)
Bacillus thuringiensis
c)
Glomus
d)
Trichoderma
24.
The common nitrogen fixer in paddy fields is
a) Rhizobium
b) Azospirillum
c) Oscillatoria
d) Frankia
25.
Which one of the following is not used in organic farming?
a)
Glomus
b)
Earthworm
c)
Oscillatoria
d)
Snail
26.
Which one following help in absorption of phosphorus from soil by plants?
a)
Glomus
b)
Rhizobium
c)
Frankia
d)
Anabaena
27.
Which one of the following is a wrong matching of a microbe and its industrial
product, while the remaining three are correct?
a)
Yeast – stains
b)
Acetobacter aceti – acid
c)
Clostridium butylicum – lactic acid
d)
Aspergillus niger – citric acid
28.
Conservationof sugar into alcohol during fermentation is due to the direct
action of
a)
temperature
b)
microorganisms
c)
zymase
d)
concentration of sugar solution
29.
Renin used in cheese industry is
a)
antibiotic
b)
enzyme
c)
alkaloid
d)
inhibitor
30.
Which one of the microorganism is used for production of citric acid in
industries
a)
Lactobacillus bulgaricus
b)
Penicillium citrinum
c)
Aspergillus niger
d)
Rhizopous nitricans
31.
Which one of the following is used in the manufacture of alcohol?
a)
Bacteria
b)
Water mould
c)
Yeast
d)
Slime mould
32.
Which one of the following is used in industrial preparation of ethanol?
a)
Lactobacillus
b)
Azotobacter
c)
Penicillium
d)
Saccharomyces
33.
Biogas consists of
a)
carbon monoxide, methane and hydrogen
b)
carbon dioxide, methane and hydrogen
c)
carbon monoxide, ethane and hydrogen
d)
carbon dioxide, ethane and hydrogen
34.
First fermented acid is
a)
gluconic acid
b)
lactic acid
c)
fumaric acid
d)
all of the above
35.
Which is not character of good antibiotic?
a)
No side effects for host
b)
Destroy microflora of alimentary canal of host
c)
Broad spectrum antibiotics
d)
Immediate reaction
36.
What is mode of bacterial resistance against antibiotics?
a)
Development of thick mucilagionous layer
b)
Alteration of cell membrane
c)
Mutation in bacteria
d)
All of the above
37.
Cheese and yoghurt are products of
a)
pasteurization
b)
distillation
c)
dehydration
d)
fermentation
38.
Sewage purification by
a)
microbes
b)
fertilizers
c)
antibiotics
d)
plants
39.
Which one produce gas by decomposing the gobar(dung) in gobar gas?
a)
Fungus
b)
Virus
c)
Methanogenic bacteria
d)
algae
40.
Escherichia coli is used as an
indicator organism to determine pollution of water with
a)
heavy metals
b)
faecal matter
c)
industrial effluents
d)
pollen of aquatic plants
41.
During anaerobic digestion of organic waste, such as in producing biogas, which
one of the following is left undergrated?
a)
Lipids
b)
Lignin
c)
Hemi-cellulose
d)
cellulose
42.
With the exception of water, which one of the following is possibly the most
important accessory chemical substance in industrial process?
a)
Petroleum
b)
Rubber
c)
Ethanol
d)
Liquid nitrogen
43.
Biogas can be a good substitute for
a)
fuel wood
b)
petroleum and oil
c)
coal
d)
charcoal
44.
Major autotrophic biomass in oceans is contributed by
a)
forests
b)
algae and phytoplanktons
c)
crops
d)
none of the above
45.
Energy plantation refers to
a)
setting up new electricity plants
b)
growth of fuel wood trees
c)
manufacture of more generators
d)
election of more dams
46.
What type of fuel are coal, petrol and natural gas?
a)
Biofuels
b)
Electrical fuels
c)
Fossil fuels
d)
Liquid fuels
47.
The fuel wood crisis can be overcome by
a)
Efficient forest extractions b)
Afforestation
c) More efficient heat transfer d) A combination of these
48.
In developing countries, the heaviest demand on forests is for
a)
fuel wood
b)
furniture wood
c)
fruits
d)
none
49.
Fuel wood is
a)
source of petroleum products
b)
renewable resource of energy
c)
source of biogas
d)
source of alcohol
50.
The vitamin whose content increases following the conservation of milk into
curd by lactic acid bacteria is
a)
vitamin C
b)
vitamin D
c)
vitamin B12
d)
vitamin E
51.
Wastewater treatment generates a large quantity of sludge, which can be treated
by
a)
digester
b)
activated sludge
c)
chemicals
d)
oxidation pond
52.
Clostridium butylicum is commercially
used to produce
a)
Lactic Acid
b)
Acetic Acid
c)
Butyric Acid
d)
Citric acid
53.
Mycorrhiza does not help the host plant in
a)
enhancing its phosphorus uptake capacity
b)
increasing its tolerance to drought
c)
enhancing its resistance to root pathogens
d)
increasing its resistance to insects
54.
which one is the most important role of micro organism for the well – beings of
humans?
a)
sewage treatment
b)
production of methane
c)
biological control of plant diseases
d)
conversion of milk to curd
55.
Activated sludge should have the ability to settle quickly so that it can
a)
be rapidly pumped back from sedimentation tank to aeration tank
b)
absorb pathogenic bacteria present in waste water while sinking to the bottom
of the setting tank
c)
be discarded and anaerobically digested
d)
absorb colloidal organic matter
56.
The term antibiotic was contained by
a)
Alexander Flemming
b)
S. Waksman
c)
Louis Pasteur
d)
Edward Jenner
57.
Biogas is produced by anaerobic breakdown of biomass of agricultural waste by
methanogenic bacteria. It is a
a)
one step process
b)
two steps process
c)
three step process
d)
three steps process
58.
Mechanism of action of antibiotics are
a)
disruption of cell wall
b)
inhibition of DNA/RNA synthesis
c)
disruption of plamalemma
d)
All of the above
59.
Saccharomyces is used in the
formation of
a)
ethanol
b)
methanol
c)
acetic acid
d)
antibodies
60.
Maximum utilization of biotechnological techniques has been made in the field
of
a)
industries
b)
medicines
c)
agriculture
d)
biogas production
61.
Which one of the following bacterial groups are
a)
Methogens
b)
Methanotrophs
c)
Organotrophs
d)
Eubacteria
62.
Mycorrhiza promotes plant growth by
a)
absorbing inorganic ions from soil
b)
helping the plants in utilizing atmospheric nitrogen
c)
protecting the plant from infection
d)
serving as plant growth regulator
63.
Which one is a neem product used as insect repellent?
a)
Azadirachtin
b)
Rotenene
c)
Parathione
d)
Endrin
64.
Petro-crops are plants
a)
grown near oil fields
b)
used in refilling crude oil
c)
whose fossil remains formed crude oil
d)
from which petrol like fuels can be derived
65.
Biofuels are
a)
renewable
b)
orthodox
c)
pollution producting
d)
organic wastes
66.
Sewage treatment process in which part of decomposer bacteria is recycled into
starting of the process is called
a)
cyclic treatment
b)
primary treatment
c)
tertiary treatment
d)
activated sludge treatment
67.
Which one of the following in not true about antibodies?
a)
First antibiotic was discovered by Alexander Flemming.
b)
The term ‘antibiotic’ was coined by S. Waksman in 1942
c)
Some persons can be allergic to a particular antibiotic
d)
Each antibiotic is effective only against one particular kind of germ.
68.
Select the correct statement from the following
a)
Methanobacterium is an aerobic
bacterium found in rumen of cattle
b)
Biogas commonly called gobar gas is pure methane.
c)
Activated sludge sediment in settlement tanks of sewage treatment plants is
rich source of aerobic bacteria.
d)
Biogas is produced by the activity of aerobic bacteria on animal waste.
69. Statement
– I : Vitamin B2 is found in cereals, green vegetables, brewer’s
yeast, egg white, milk and liver.
Statement – II : It can be commercially
produced by some yeasts.
a)
Statement-I is True, Statement-II is True, Statement-II is correct explanation
for Statement-I
b)
Statement-I is True, Statement-II is true, Statement-II is not a correct
explanation for Statement-I
c)
Statement-I is True, Statement-I is true, Statement-II is False
d)
Both the statements are False.
70.Which
one is wrongly matched?
a)
Yeast – Ethanol
b)
Streptomyces – Antibiotics
c)
Lactobacillus – Beer
d)
Methanogens – Gobar gas
71.
Find out the pairs, which are correctly matched
Column-I
Column-II
A) Cyanobacteria I.
Biopesticides
B) Mycorrhiza II. Solubilization of phosphate
C) Bacillus
thuringienses III. Cry protein
D)
Single cell protein IV.
Rhizobia
a)
A and II
b)
C and III
c)
C and IV
d)
A and III
72.
Aspergillus niger is commercially
used to produce
a)
Lactic Acid
b)
Acetic Acid
c)
Butyric Acid
d)
Citric acid
73. Following is the sewage treatment.
In which of the following options, correct word for all the four numbers (1,2,3
and 4) are indicated –
a) 1 – Large aeration tanks, 2 –
Chemically agitation, 3 – High, 4 – Anaerobic
b) 1 – Large aeration tanks, 2 –
Mechanically agitation, 3 – Low, 4 – Anaerobic
c) 1 – Large aeration tanks, 2 –
Chemically agitation, 3 – Low, 4 – Aerobic
d) 1 – Large aeration tanks, 2 –
Mechanically agitation, 3 – High, 4 – Anaerobic
74. Choose the correct sequence of
microbes involved in biogas production
a) Fragmentative microbes, decomposers
methanogens
b) Decomposers, methanogens, putrefying
microbes.
c) Putrefying
microbes, methanogens, saprophytic microbes
d) Decomposers, fermentative microbes,
methaniogens.
75. What should happen if oxygen
availability to activated sludge flocs is reduced?
a) It will slow down the rate of
degradation of organic matter
b) The center of flocs will become
anoxic, which would cause death of bacteria and eventually breakage of flocs
c)
Flocs would increase in size as anaerobic bacteria would grow around flocs
d)
Protozoa would grow in large numbers.
ANSWER KEY
1.A 2.D 3.A 4.B 5.C 6.D 7.B
8.A 9. A 10.D 11.D 12.A 13.C 14.C
15.C 16.C 17.A 18.A 19.A 20.A 21.D
22.A 23.D 24.B 25.D 26.A 27.C 28.C
29.B 30.C 31.C 32.D 33.B 34.B 35.B
36.D 37.D 38.A 39.C 40.B 41.B 42.A
43.A 44.B 45.B 46.C 47.A 48.A 49.A
50.C 51.D 52.C 53.D 54.C 55.A 56.B
57.C 58.A 59.A 60.B 61.A 62.A 63.A
64.D 65.A 66.D 67.D 68.C 69.B 70.C
71.B 72. D 73.B 74.D
Thnk you sir
ReplyDelete