NEET Biology Microbes and Human Welfare MCQs Set 03

Question: Which symbiotic bacteria is N2 fixative with the root nodule of leguminious plant ?

• a) Rhizobium
• b) Azotobactor
• c) Clostridium
• d) Azospyrillium

Answer: Rhizobium

Question: Which living organism works as bio-fertiliser ?

• a) Azzola
• b) Clostridium
• c) Azotobactor
• d) Rhizobium

Answer: Azzola

Question: Which micro organism is useful in production of citric acid ?

• a) Asperzilus niger
• b) Clostridium
• c) Penicillium
• d) Azotobactor

Answer: Asperzilus niger

Question: By which process cheese and toddy is obtained ?

• a) Fermantation
• b) Distillation
• c) Pasuirisation
• d) Hydrolisis

Answer: Fermantation

Question: To which BOD is related ?

• a) Organic compound
• b) Microbes and organic matters
• c) Microbes
• d) None of them

Answer: Organic compound

Question: Which organism is useful to produce Riboflavin ?

• a) Arabia hossipae
• b) Saccharhomyces Cervisiae
• c) both
• d) None of them

Answer: Arabia hossipae

Question: Bacillus thuringiensis is useful in

• a) Biotoxic plant
• b) Bio product plant
• c) Biometalogical
• d) Bio fertiliser

Answer: Biotoxic plant

Question: Bio fertilizer means

• a) prepared by Anabaena and Nostoc
• b) Cow dung and agricultural west
• c) Crop which shows rapid growth
• d) None of them

Answer: prepared by Anabaena and Nostoc

Question: Which pair is correct ? 

1 - Cynobacteria - Bio pestisides

2 - Mychorriza - Absorption of phosphurus

3 - Becillus thuringiensis - toxin

4 - Single cell protien - Rhizobium

• a) 3
• b) 1
• c) 4
• d) 2

Answer: 3

Question: Which pair is odd ?

• a) Streptococus - Stetins
• b) Methenogens - Biogas
• c) Pen icillium - Penicillin
• d) Yeast - Ethenol

Answer: Streptococus - Stetins

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

• a) More
• b) Less
• c) Normal
• d) Zero

Answer: More

Question: Which pair is correct ?

• a) Mychoriza - Absorbation of Phosphate
• b) Nostoc - Biofuel
• c) Rhizobium - Parasites of leguminous plant
• d) Yeast - Biogas production

Answer:  Mychoriza - Absorbation of Phosphate

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

• a) Contains Endo toxin gene of B.T.
• b) Bigger thread variety
• c) Produce by biotechnologycal enzymes ristiction endonueleus
• d) Cotton seeds treated with Barium

Answer: Contains Endo toxin gene of B.T.

More Questions.....................................

Question: Azospirillium and Azotobector for example of.

• a) Free living N₂ fixative
• b) Pathogenes
• c) Decomposers
• d) Symbiotic N₂ fixative

Answer: Free living N₂ fixative

Question: How the ethenol is produce in industrial field ?

• a) Aspergillus
• b) Saecheromisis
• c) Clostridium
• d) Streptomysis

Answer: Aspergillus

Question: Which option provides fertiliser as well as energy ?

• a) Biogas
• b) rhizobium
• c) Fuel Plant
• d) All the given

Answer: Biogas

Question: Which one is true information for toxin Bt ?

• a) Toxic enters into the alimentary canal of insects which results lethal for the insect.
• b) Becillius contains antitoxin material
• c) Active toxin enters into the ovary of insects and makes it sterile so as to stop the reproduction
• d) Bt protien contains active toxins in bacillus

Answer: Toxic enters into the alimentary canal of insects which results lethal for the insect.

Question: 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: Amount of organic matters of water

Question: 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-iii) (Q-i) (R-ii) (S-iv)
• b) (P-iv) (Q-ii) (R-i) (S-iii)
• c) (P-iii) (Q-i) (R-ii) (S-iv)
• d) (P-iii) (Q-i) (R-iii) (S-ii)

Answer:  (P-iii) (Q-i) (R-ii) (S-iv)

Question: 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) (Q-i) (R-ii) (S-iii) (P-iv)
• b) (P-i) (Q-ii) (S-iii) (S-iv)
• c) (S-i) (P-ii) (Q-iii) (R-iv)
• d) (R-i) (P-ii) (Q-iii) (S-iv)

Answer: (Q-i) (R-ii) (S-iii) (P-iv)

Question:

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) (P-iii) (Q-iv)
• b) (S-i) (Q-ii) (P-iii) (R-iv)
• c) (R-i) (S-ii) (Q-iii) (P-iv) (b
• d) (R-i) (P-ii) (S-iii) (Q-iv)

Answer: (R-i) (S-ii) (P-iii) (Q-iv)

Question: 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) (P-ii) (R-iv) (S-iii)
• b) (Q-i) (R-ii) (S-iii) (P-iv)
• c) (P-i) (Q-ii) (R-iii) (S-iv)
• d) (R-i) (S-ii) (P-iii) (Q-iv)

Answer: (Q-i) (P-ii) (R-iv) (S-iii)

Question:

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) (R-ii) (S-iii) (Q-iv)
• b) (S-i) (r-ii) (P-iii) (Q-iv)
• c) (P-i) (Q-ii) (R-iii) (S-iv)
• d) (R-i) (P -ii) (Q-iii) (S-iv)

Answer: (P-i) (R-ii) (S-iii) (Q-iv)

Question: 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) (P-iii) (Q-i) (R-ii) (S-iv)
• c) (Q-i) (P-ii) (R-iii) (S-iv)
• d) (P-i) (Q-ii) (R-iv) (S-iii)

Answer: (P-i) (Q-ii) (R-iii) (S-iv)

Question:

A :- Lab improves quality of vitamin-B12

R :- Lactobacilus bectaria produces lactic acid.

• a) Both A and R are true but R is not correct explantion of A.
• b) Both A and R are true and R is correct explanation of A.
• c) A is true but R is false.
• d) A is false but R is true

Answer: Both A and R are true but R is not correct explantion of A.

Question:

A :- Cyclosporin-A is used as an Immunosupressiore.

R :- Cyclosporin-A is obtained from Trichoderma

• a) Both A and R are true but R is not correct explantion of A.
• b) Both A and R are true and R is correct explanation of A.
• c) A is true but R is false.
• d) A is false but R is true

Answer: Both A and R are true but R is not correct explantion of A.

Question:

A :- Encilage is food for cattle.

R :- Encilage is produced by fermantation of protien of green plant tissue.

• a) A is true but R is false
• b) A is false but R is true
• c) Both A and R are true but R is not correct explantion of A
• d) Both A and R are true and R is correct explanation of A

Answer: A is true but R is false

Question:

A :- Dung of cattle is used to produced biogas.

R :- There are large number of methenogonic bacteria in dung of cattle

• 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: Both A and R are true and R is correct explanation of A

Question:

A:- As an alternative to chemicals, biochemicals are produced through biocontrol agent.

R :- Using biochemicals, natural balance is maintained.

• 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: Both A and R are true and R is correct explanation of A

Question:

A :- Photosynthetic bacteria produced to N₂.

R :- Bacteria are able to convert solar energy into chemical energy

• a) A is false but R is true
• b) A is true but R is false
• c) Both A and R are true but R is not correct explantion of A.
• d) Both A and R are true and R is correct explanation of A.

Answer: A is false but R is true

Question: Which one is related with steriods ?

• a) Acetic acid
• b) Palmitic acid
• c) Butyric acid
• d) Citric acid

Answer: Acetic acid

Question: Which is used to prevent blood clotting in blood vessels ?

• a) Streptokinase
• b) Stetins
• c) Cyclo sporin-A
• d) Steriods

Answer: Streptokinase

Question: Which is to be used in production of swiss cheese ?

• a) Clostridium bacterium
• b) Saecharhomyces Cerrevisiae
• c) Monoscus Purpureus
• d) Lacto Bacillus

Answer: Clostridium bacterium

Question: Which option is related with the utility of lectic acid ?

• a) All the given
• b) useful for preparing curd from milk
• c) In fermantation, to prepare pickle
• d) To increase the quality of vitamin B₁₂

Answer: All the given

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

• a) Cyclosporin-A
• b) Cyclosprin-C
• c) Cyclosporin-L
• d) All the given

Answer: Cyclosporin-A

Question: Which bacteria is useful for purification in sewage treatment ?

• a) Hetrotrops
• b) Symbiont
• c) Parasist
• d) Free living

Answer: Hetrotrops

Question: Which assertion is correct ?

• a) Biofertilisers are used over chemical fertilizer to redused pollution
• b) Chemical fertiliser are used to form biofertiliser
• c) Micro organism are used as a bio control agent by IARI.
• d) There is role of ministry of forest and environment in developing biogas technology

Answer: Biofertilisers are used over chemical fertilizer to redused pollution

Question: To which, function baculo virus is involve ?

• a) Produces deases some arthropods and insect
• b) Produces Insectisides
• c) Produces deases in todes neme.
• d) Produces deases in fungus

Answer: Produces deases some arthropods and insect

Question: Which one is related with monoscus pupurous ?

• a) Stetins - Decreases the cholesterole in blood
• b) Cyclosporin- A - Immunosuppresser
• c) Streptokinase - To prevent blood clotting
• d) All the given

Answer:  Stetins - Decreases the cholesterole in blood

Question: Full form of BOD

• a) Biochemical Oxygen Demand
• b) Biological Oxygen Demand
• c) Bio Oxygen Demand
• d) Biochemical Oxygen Degreadable

Answer: Biochemical Oxygen Demand

Question: Which is the group of autotroph micro organisms ?

• a) Acelatoria, Anabaena,Nostoc, Cynobacteria
• b) Nostoc, Aspergilus, Anabaena, Rhizopus
• c) Aceletoria, Anabaena, Cynobacteria, Rhizopus
• d) Anabaena, Nostoc, Glomus, Trichoderma

Answer: Acelatoria, Anabaena,Nostoc, Cynobacteria

Question: 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: Filteration and Sedimentation

Question: Which is useful to control Nematodes in cearel crops ?

• a) Bionemotocides
• b) Fungicides
• c) Weedicides
• d) Incecticeides

Answer: Bionemotocides

Question: 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: Progesteron is useful as a immuno suppressor

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

• a) Fungus
• b) Algae
• c) Virus
• d) Bacteria

Answer: Fungus

Question: Find odd group out

• a) Butaric acid, Isotric acid, Lectic acid, Melic acid
• b) Carbomycin, bactitracin, tetracytidine, fumagillin
• c) Amylase, Protease, Lipase, Csellulase
• d) Glucomylase, Renin, Glucose Oxicide

Answer: Butaric acid, Isotric acid, Lectic acid, Melic acid

Question: Which pest is obtained from Pseudononas ?

• a) Quantum-4000
• b) Quantum-400
• c) Quantum-40000
• d) Quantum-40

Answer: Quantum-4000

Question: Which organism is useful to prepare Alcohol ?

• a) Saccherohmycis Cerevisiae
• b) Streptomycis Saccheromysis
• c) Saccherohmy Ceribicie
• d) Streptococus cerbicie

Answer: Saccherohmycis Cerevisiae

Question: Which pair is odd ?

• a) Trichoderma-Free living bactaria
• b) Rhizobium-Symbiotic bacteria
• c) Glamus-Symblotic fungus
• d) Azatobector-Free living bactaria

Answer: Trichoderma-Free living bactaria

Question: Which is correct sequence for purification process of STPs ?

• a)

  

• b)

  

• c) Both
• d) None of this

Answer: