Chapter: Microbes and Human Welfare
1.

Which organisms are useful for the knowledge of biotechnology and genetic engineering ?

A. Animal
B. Plants
C. Micro Organism
D. None of them
Answer» C. Micro Organism
2.

Which bacteria gives protection against gestiric injury ?

A. Methenogin
B. Lecto Bacillus
C. Lecto Cocas
D. Lecto Strepto
Answer» B. Lecto Bacillus
3.

Which micro-organism are useful in fermantation of dough for the idli and dhosa ?

A. Bacteria
B. Protozua
C. Fungus
D. Virus
Answer» A. Bacteria
4.

Which is useful to obtainace acetic acid ?

A. Aspergillus niger
B. Clostridium Butirycun
C. Acetobactor aceti
D. Saech arhomyces Cerreui Siae
Answer» C. Acetobactor aceti
5.

Which is one correct for the amino acid ?

A. L-melic acid
B. L-Lycin
C. L-aluconic Acid
D. (a) & (c) both
Answer» B. L-Lycin
6.

Which is useful to remove the oily stains in laundry ?

A. Renin
B. Protease
C. Amaylase
D. Lipase
Answer» D. Lipase
7.

Which one correct option for fermantation ?

A. To prepare pickle from vegetable and savour fruits
B. To prepare food for cattle
C. To prepare some vitamins
D. In production of some Enzymes
Answer» D. In production of some Enzymes
8.

Which is useful to remove weeds in agriculture ?

A. Pesticide
B. Weedicide
C. Fungicide
D. Insecticides
Answer» B. Weedicide
9.

Which metabolic process is performed by bectaria in biogas plant ?

A. Aerobic Respiration
B. Cellular Respiration
C. Anerobic Respiration
D. Internal Respiration
Answer» C. Anerobic Respiration
10.

IARI means.....

A. India Agriculture Research Institute
B. International Agrochemical Research Institute
C. Indian Agrochemical Research Institute
D. Indian Agriculture Resource Institute
Answer» A. India Agriculture Research Institute
11.

Which organism is useful to form biofertiliser ?

A. Glomu
B. Cynobacteria
C. Azospirillum
D. All the given
Answer» D. All the given
12.

Which organic compuned is useful to prepare Encilage ?

A. Vitamin
B. Protien
C. Lipid
D. Carbohydrates
Answer» D. Carbohydrates
13.

Which one is produce by the help of Arebia gossipae ?

A. Riboflavin
B. Steriods
C. Statins
D. Lycin
Answer» A. Riboflavin
14.

Which is irrelavant for mychorrhiza ?

A. Absorb of phosphorou
B. Increase Immunity
C. Fixation of Free N2
D. Protectes against salinity and draought
Answer» C. Fixation of Free N2
15.

Which group is true for the Enzymes of micro organism ?

A. Amylase, Protease, Lipase, Protease.
B. Glycin, Renin, Lipase, Melic Acid
C. Lipase, Protease, Lipase, Amylase
D. Glyconic acid, protease, Lipase, Amylose
Answer» C. Lipase, Protease, Lipase, Amylase
16.

Which fungus is useful to prepare bread ?

A. Rhizopus nigrican
B. Saecharhomyces Cerrevisiae
C. Clostridium Butirycum
D. Asper Gillus Niger
Answer» B. Saecharhomyces Cerrevisiae
17.

Find odd sentences out :-

A. Ethenol is used as a fuel in Brazil.
B. Toddy is prepared from palm tree in north India.
C. Micro organism are useful to prepare enzymes, protienes and steriods.
D. Penicillin is prepared from penicillium notatum.
Answer» B. Toddy is prepared from palm tree in north India.
18.

Which micro organism is useful to obtain short chain fatty acids ?

A. Saecharhomyces Cerrevisiae
B. Azeto bacter aciti
C. Clostridium butirycum
D. Aspergillus niger
Answer» A. Saecharhomyces Cerrevisiae
19.

In production of which carbonic acid,Aspergillus niger is useful ?

A. Citric acid
B. Butyric acid
C. Acetic acid
D. Palmitic acid
Answer» A. Citric acid
20.

Which one is related with steriods ?

A. Citric acid
B. Butyric acid
C. Acetic acid
D. Palmitic acid
Answer» C. Acetic acid
21.

Which is used to prevent blood clotting in blood vessels ?

A. Steriod
B. Cyclo sporin-A
C. Streptokinase
D. Stetins
Answer» C. Streptokinase
22.

Which is to be used in production of swiss cheese ?

A. Monoscus Purpureu
B. Clostridium bacterium
C. Lacto Bacillus
D. Saecharhomyces Cerrevisiae
Answer» B. Clostridium bacterium
23.

Which option is related with the utility of lectic acid ?

A. In fermantation, to prepare pickle
B. useful for preparing curd from milk
C. To increase the quality of vitamin B12
D. All the given.
Answer» D. All the given.
24.

Which one is useful as a immunosuppresive agent in organ transplant ?

A. Cyclosprin-C
B. Cyclosporin-L
C. Cyclosporin-A
D. All the given
Answer» C. Cyclosporin-A
25.

Which bacteria is useful for purification in sewage treatment ?

A. Hetrotrop
B. Symbiont
C. Free living
D. Parasist
Answer» A. Hetrotrop
26.

Which assertion is correct ?

A. There is role of ministry of forest and environment in developing biogas technology.
B. Micro organism are used as a bio control agent by IARI.
C. Biofertilisers are used over chemical fertilizer to redused pollution.
D. Chemical fertiliser are used to form biofertiliser.
Answer» C. Biofertilisers are used over chemical fertilizer to redused pollution.
27.

To which, function baculo virus is involve ?

A. Produces deases some arthropods and insect.
B. Produces deases in todes neme.
C. Produces deases in fungus.
D. Produces Insectisides.
Answer» A. Produces deases some arthropods and insect.
28.

Which one is related with monoscus pupurous ?

A. Streptokinase - To prevent blood clotting.
B. Cyclosporin- A - Immunosuppresser
C. Stetins - Decreases the cholesterole in blood
D. All the given
Answer» C. Stetins - Decreases the cholesterole in blood
29.

Full form of BOD.

A. Biological Oxygen Demand
B. Bio Oxygen Demand
C. Biochemical Oxygen Demand
D. Biochemical Oxygen Degreadable
Answer» C. Biochemical Oxygen Demand
30.

Which is the group of autotroph micro organisms ?

A. Anabaena, Nostoc, Glomus, Trichoderma
B. Aceletoria, Anabaena, Cynobacteria, Rhizopus.
C. Nostoc, Aspergilus, Anabaena, Rhizopus
D. Acelatoria, Anabaena,Nostoc, Cynobacteria.
Answer» D. Acelatoria, Anabaena,Nostoc, Cynobacteria.
31.

By which process floating debris and grit are removed in STPs respectively ?

A. Filteration and Sedimentation
B. Filteration and Distilation
C. Sedimentation and Filteration
D. Only Filteration
Answer» A. Filteration and Sedimentation
32.

Which is useful to control Nematodes in cearel crops ?

A. Bionemotocide
B. Fungicides
C. Weedicides
D. Incecticeides
Answer» A. Bionemotocide
33.

Which sentence is odd ?

A. Progesteron is useful as a immuno suppressor
B. Stetins is useful to reduse cholesterole
C. Streptokines is useful to prevent blood clotting
D. Lipase is useful to remove oily stains
Answer» A. Progesteron is useful as a immuno suppressor
34.

Which micro organism is involved in flocks as well as in michorrhiza ?

A. Bacteria
B. Virus
C. Fungus
D. Algae
Answer» C. Fungus
35.

Find odd group out :-

A. Carbomycin, bactitracin, tetracytidine, fumagillin
B. Butaric acid, Isotric acid, Lectic acid, Melic acid
C. Amylase, Protease, Lipase, Csellulase
D. Glucomylase, Renin, Glucose Oxicide
Answer» B. Butaric acid, Isotric acid, Lectic acid, Melic acid
36.

Which pest is obtained from Pseudononas ?

A. Quantum-400
B. Quantum-4000
C. Quantum-40000
D. Quantum-40
Answer» B. Quantum-4000
37.

Which organism is useful to prepare Alcohol ?

A. Saccherohmy Ceribicie
B. Streptomycis Saccheromysis
C. Streptococus cerbicie
D. Saccherohmycis Cerevisiae
Answer» D. Saccherohmycis Cerevisiae
38.

Which pair is odd ?

A. Rhizobium-Symbiotic bacteria
B. Glamus-Symblotic fungus
C. Trichoderma-Free living bactaria
D. Azatobector-Free living bactaria
Answer» C. Trichoderma-Free living bactaria
39.

Which is correct sequence for purification process of STPs ?

A. Primary Sludge EffluentFlocks Active Sludge Biogas
B. Flocks Primary Sludge Effluent Active Sludge Biogas
C. Primary Sludge Effluent Active Sludge Flocks Biogas
D. EffluentFlocks Primary Sludge Active Sludge Biogas
Answer» A. Primary Sludge EffluentFlocks Active Sludge Biogas
40.

Which product is synthesized by micro organism at commerical level for mankind ?

A. Vaccine
B. Biofuel
C. Alcohol
D. All the given
Answer» D. All the given
41.

Effluent means....

A. Water remaining under the primary sludge.
B. Solid compunds of the sedimentation
C. Water remaining over the primary sludge
D. Flocks forms from the primary sludge.
Answer» C. Water remaining over the primary sludge
42.

Which group of micro organism is useful as a bio control agent ?

A. Cynobacteria, Bacula virus, Trichoderma
B. Trichoderma, Psuedomonas, Bacillus Thuringiensis
C. Rhizhobiam, Cynobacteria, Psuedomonas
D. All the given
Answer» B. Trichoderma, Psuedomonas, Bacillus Thuringiensis
43.

Which bacteria are useful in anaerobic sludge digestures tank ?

A. Hypo geal
B. Aerobic
C. Free living
D. Aneorobic
Answer» D. Aneorobic
44.

Which one correct for the free living and symbiotic funges ?

A. Glomus and Rhyzopu
B. Glomus and Azospirillum
C. Trichoderma and Rhizopus
D. Trichoderma and Azospirillum
Answer» B. Glomus and Azospirillum
45.

Formation of flocks means....

A. Assoicated of virus with the bacteria remains in water
B. Bactaria which associated with the mychoriza of the fungus of water
C. Bactaria which associated with the mychorriza of the fungus of soil
D. Bactaria which associated with the solid waste of the water
Answer» B. Bactaria which associated with the mychoriza of the fungus of water
46.

In which tank flocks is sedimenated and forms respectively ?

A. Settling tank, Aeration tank
B. Aeration tank, Effluent tank
C. Aeration tank, Settling tank
D. Effluent tank, Anearoble tank
Answer» A. Settling tank, Aeration tank
47.

Who has established Ganga nad Yamuna action plan ?

A. IARI
B. KVIC
C. Ministry of forest and Environment
D. Integrated pest control management
Answer» C. Ministry of forest and Environment
48.

What is sedimantated flocks ?

A. Passive sludge
B. Primary sludge
C. Active sludge
D. None of them
Answer» C. Active sludge
49.

Which statement is correct for STPs ?

A. Value of BOD is decrease in effluent.
B. Flocks is sedimanted in settling tank.
C. At end of process biogas is form
D. (d) All the given
Answer» D. (d) All the given
50.

Which odd for mixed gases which produces in anerobic sludge diagesters ?

A. CO2
B. CH4
C. H2S
D. CH3
Answer» D. CH3
51.

Which bacteria is remain in alimentary canal of herbivorus ?

A. Azetobactor
B. Methenogens
C. Azospirillium
D. Bacillus
Answer» B. Methenogens
52.

Which biological process will take place in STPs ?

A. Flock
B. Filteration
C. Sedimentation
D. (b) & (c) both
Answer» A. Flock
53.

What is indirectly called the measurment of organic matter of water ?

A. BOD
B. DOB
C. COD
D. DOC
Answer» A. BOD
54.

From which compound methane gas is produced by bacteria ?

A. lipase
B. Amylase
C. Cellulase
D. Protease
Answer» C. Cellulase
55.

Which gas will produced in anearobic sludge digesteres ?

A. CO2
B. H2S
C. CH4
D. All the given
Answer» D. All the given
56.

Which micro organism is irrelevent as a biocontrol agent ?

A. Viru
B. Bectaria
C. Algae
D. Fungus
Answer» C. Algae
57.

Which scientist has invented Antibodies ? (KCET 2004)

A. Ernest chain
B. Howard Florey
C. Alexander Fleming
D. W.Fleming
Answer» C. Alexander Fleming
58.

Which bacterial group is useful in biogas production ? (JIPMER 2000)

A. Rhizobium
B. Methanogens
C. Argonotrocs
D. Eubectaria
Answer» B. Methanogens
59.

Which symbiotic bacteria is N2 fixative with the root nodule of leguminious plant ? (AFMC 1998)

A. Azospyrillium
B. Clostridium
C. Azotobactor
D. Rhizobium
Answer» D. Rhizobium
60.

Which living organism works as bio-fertiliser ? (PMT 1998)

A. Azzola
B. Clostridium
C. Azotobactor
D. Rhizobium
Answer» A. Azzola
61.

Which micro organism is useful in production of citric acid ? (CBSEPMT 1995)

A. Azotobactor
B. Penicillium
C. Asperzilus niger
D. Clostridium
Answer» C. Asperzilus niger
62.

By which process cheese and toddy is obtained ? (PMT 1998)

A. Fermantation
B. Distillation
C. Pasuirisation
D. Hydrolisis
Answer» A. Fermantation
63.

To which BOD is related ? (MP MPT 2002)

A. Microbes and organic matter
B. Organic compound
C. Microbes
D. None of them
Answer» B. Organic compound
64.

Which organism is useful to produce Riboflavin ? (CBSEPMT 1999)

A. Arabia hossipae
B. Saccharhomyces Cervisiae
C. (a) & (b) both
D. None of them
Answer» A. Arabia hossipae
65.

Bacillus thuringiensis is useful in.... (CBSEPMT 2005)

A. Bio fertiliser
B. Biometalogical
C. Biotoxic plant
D. Bio product plant
Answer» C. Biotoxic plant
66.

Bio fertilizer means......

A. Crop which shows rapid growth
B. Cow dung and agricultural west
C. prepared by Anabaena and Nostoc
D. None of them
Answer» C. prepared by Anabaena and Nostoc
67.

Which pair is correct ? (Kerala PMT 2007)
1 - Cynobacteria - Bio pestisides
2 - Mychorriza - Absorption of phosphurus
3 - Becillus thuringiensis - toxin
4 - Single cell protien - Rhizobium

A. 2
B. 3
C. 1
D. 4
Answer» B. 3
68.

Which pair is odd ? (CBSEPMT 2007)

A. Yeast - Ethenol
B. Penicillium - Penicillin
C. Methenogens - Biogas
D. Streptococus - Stetins
Answer» D. Streptococus - Stetins
69.

What is value of BOD of sewage water in comparision to normal water ?

A. More
B. Less
C. Normal
D. Zero
Answer» A. More
70.

Which pair is correct ? (AIIMS 2003)

A. Rhizobium - Parasites of leguminous plant
B. Mychoriza - Absorbation of Phosphate
C. Yeast - Biogas production
D. Nostoc - Biofuel
Answer» B. Mychoriza - Absorbation of Phosphate
71.

According to latest news BT cotton is widely cultivated, in that Bt cotton means....

A. Bigger thread variety
B. Cotton seeds treated with Barium
C. Produce by biotechnologycal enzymes ristiction endonueleus
D. Contains Endo toxin gene of B.T.
Answer» D. Contains Endo toxin gene of B.T.
72.

Which are the main components of biogas ?

A. CH4 + CO2 + N2
B. CO2 + H2O
C. CH3 + O2
D. CO2 + H2
Answer» A. CH4 + CO2 + N2
73.

Azospirillium and Azotobector for example of.....

A. Decomposer
B. Free living N2 fixative
C. Symbiotic N2 fixative
D. Pathogenes
Answer» B. Free living N2 fixative
74.

How the ethenol is produce in industrial field ?

A. Saecheromisi
B. Clostridium
C. Aspergillus
D. Streptomysis
Answer» C. Aspergillus
75.

Which option provides fertiliser as well as energy ?

A. rhizobium
B. Biogas
C. Fuel Plant
D. All the given
Answer» B. Biogas
76.

Which one is true information for toxin Bt ?

A. Bt protien contains active toxins in bacillus
B. Active toxin enters into the ovary of insects and makes it sterile so as to stop the reproduction.
C. Becillius contains antitoxin material
D. Toxic enters into the alimentary canal of insects which results lethal for the insect.
Answer» D. Toxic enters into the alimentary canal of insects which results lethal for the insect.
77.

By BOD which one is to be measured ?

A. Amount of organic matters of water.
B. Industrial waste of water Resources.
C. Amount of co which connected with Hb.
D. Amount of required O2 for dark reaction of green plants.
Answer» A. Amount of organic matters of water.
78.

Match the following
Column-I Column-II
(P) Cyclosporin-A (i) Rhizopus nigricans
(Q) Hydroxi Projegteron (ii) Monoscus Purpureus
(R) Stetins (iii) Arebia Gossipi
(S) Riboflavin (iv) Trhichoderma polysporum

A. (P-iv) (Q-ii) (R-i) (S-iii)
B. (P-iii) (Q-i) (R-ii) (S-iv)
C. (P-iii) (Q-i) (R-ii) (S-iv)
D. (P-iii) (Q-i) (R-iii) (S-ii)
Answer» C. (P-iii) (Q-i) (R-ii) (S-iv)
79.

Match the following
Column-I Column-II
(P) Aspergilus niger (i) Butyric acid
(Q) Clostridium butiricum (ii) Acetic acid
(R) Azatobactor (iii) Lactic acid
(S) Lactobacillus (iv) Citric acid

A. (S-i) (P-ii) (Q-iii) (R-iv)
B. (Q-i) (R-ii) (S-iii) (P-iv)
C. (R-i) (P-ii) (Q-iii) (S-iv)
D. (P-i) (Q-ii) (S-iii) (S-iv)
Answer» B. (Q-i) (R-ii) (S-iii) (P-iv)
80.

Match the following
Column-I Column-II
(P) Cynobacteria (i) N2-fixation
(Q) Pseudomonas (ii) Biogas
(R) Rhizobium (iii) Biofertilisersin peddy fields
(S) Methenogens (iv) Quantam-4000

A. (R-i) (S-ii) (Q-iii) (P-iv)
B. (S-i) (Q-ii) (P-iii) (R-iv)
C. (R-i) (P-ii) (S-iii) (Q-iv)
D. (R-i) (S-ii) (P-iii) (Q-iv)
Answer» D. (R-i) (S-ii) (P-iii) (Q-iv)
81.

Match the following
Column-I Column-II
(P) Blue green Algae (i) Pathogenes effect some arthropods
(Q) Baculo virus (ii) Increase organic matters in soil
(R) Bacillus thariengensis (iii) Bio control
(S) Trichoderma (iv) Produced toxin

A. (Q-i) (R-ii) (S-iii) (P-iv)
B. (P-i) (Q-ii) (R-iii) (S-iv)
C. (Q-i) (P-ii) (R-iv) (S-iii)
D. (R-i) (S-ii) (P-iii) (Q-iv)
Answer» C. (Q-i) (P-ii) (R-iv) (S-iii)
82.

Match the following
Column-I Column-II
(P) Streptokinase (i) To provent blood clotting
(Q) Penicillin (ii) To decrease cholesterole
(R) Stetins (iii) Immuno supressor
(S) Cyclosporin-A (iv) Anti biotic

A. (P-i) (Q-ii) (R-iii) (S-iv)
B. (P-i) (R-ii) (S-iii) (Q-iv)
C. (R-i) (P -ii) (Q-iii) (S-iv)
D. (S-i) (r-ii) (P-iii) (Q-iv)
Answer» B. (P-i) (R-ii) (S-iii) (Q-iv)
83.

Match the following
Column-I Column-II
(P) BOD (i) Food for cattle
(Q) Flocks (ii) Association of Bactaria and filaments of mold in water
(R) Encilage (iii) Measure of the organic matter in a water
(S) Biogas (iv) Anaerobic metabolisom on biowaste

A. (R-i) (Q-ii) (P-iii) (S-iv)
B. (Q-i) (R-ii) (S-iii) (P-iv)
C. (P-i) (S-ii) (R-iii) (Q-iv)
D. (S-i) (P-ii) (S-iii) (R-iv)
Answer» A. (R-i) (Q-ii) (P-iii) (S-iv)
84.

Match the following
Column-I Column-II
(P) Rhizobium (i) Leguminous
(Q) Anabaena (ii) Autotroph N2-fixative
(R) Azatobactor (iii) Freeliving N2-fixative
(S) Glomus (iv) Phosphorus absorption
(a) (P-i) (Q-ii) (R-iii) (S-iv) (b) (Q-i) (P-ii) (R-iii) (S-iv)
(c) (P-iii) (Q-i) (R-ii) (S-iv) (d) (P-i) (Q-ii) (R-iv) (S-iii) Statement (A) and Reason (R) Type Question

A. Both A and R are true and R is correct explanation of A.
B. Both A and R are true but R is not correct explantion of A.
C. A is true but R is false.
D. A is false but R is true.
Answer» A. Both A and R are true and R is correct explanation of A.
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