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Microbes in Human welfare - NEET Practice Bits
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Which organisms are necessary for genetic engineering and biotechnology?
(A) Animals
(B) Microbes
(C) Plants
(D) None of the above
Which bacteria are useful to produce curd from milk ?
(A) Lacto streptococcus
(B) Lacto bacillus
(C) Lacto methanogens
(D) Lacto coccus
What is produced by LAB during curd formation from milk ?
(A) Base
(B) Acids
(C) Salt
(D) All the above
Which is the substrate digested by LAB in Milk ?
(A) Carbohydrates
(B) Lipids
(C) Proteins
(D) Nucleic acids
Which nutrient's quality is increased by Lactobacillus ?
(A) Vit - K
(B) Vit - B12
(C) Vit - C
(D) Vit - D
Which is the correct option for the bacteria that provides protection from harmful bacteria in human stomach ?
(A) Lactobacillus
(B) Azotobactor
(C) Methanogens
(D) Clostridium
Which are the microbes used in fermentation to prepare Idli and Dosa ?
(A) Virus
(B) Protozoa
(C) Fungi
(D) Bacteria
Choose the correct match for uses of Lactic acid.
(A) It is useful to prepare curd from milk
(B)To increase quality of Vit - B12
(C) In fermentation to prepare pickles
(D)All of the above
Which is the fungi used to prepare bread ?
(A) Aspergillus niger
(B) Rhizopus nigricans
(C) Propioni bacterium
(D) Saccharomyces cerevisiae
Which biomolecule is fermented to prepare ensilage (food for cattle) from greenplants?
(A) Lipid
(B) Protein
(C) Carbohydrates
(D) Vitamins
What is prepared by Propioni bacterium sharmanii ?
(A) Roquefort cheese
(B) Brewer's Yeast
(C) Swiss cheese
(D) Toddy drink
Which organism plays an important role in production of Ethanol ?
(A) LAB
(B) Saccharomyces cerevisiae
(C) Monoscus purpureus
(D) Arabia gossipe
Which organisms are useful as energy resources ?
(A) Ethanogenic bacteria
(B) Acetobactor aceti
(C) Methanogenic bacteria
(D) Clostridium butyricum
Which gas is produced as energy fuel by photosynthetic microbes ?
(A) N2
(B) H2
(C) CO2
(D) O2
Which organism is used to produce Penicillin ?
(A) Aspergillus niger
(B) Acetobactor aceti
(C) Penicillium notatum
(D) Clostridium butyricum
Which is not the correct option for antibiotics ?
(A) Carbomycin
(B) Acetracin
(C) Fumagillin
(D) Tetracycline
Which organism is useful to prepare citric Acid ?
(A) Aspergillus niger
(B) Clostridium butyricum
(C) Acetobactor aceti
(D) Lacttobacillus aceti
What is useful as immunosuppressive agent in Organtransplantation ?
(A) Cyclosporin
(B) Cyclosporin a
(C) L – malic acid
(D) L – Lysine
For what streptokinase is used ?
(A) To remove oily stains from clothes.
(B) To decrease cholesterol in blood.
(C )as immunosuppressive agent during organ transplantation in patients.
(D) to prevent blood clotting in blood vessels
What is useful to decrease cholesterol level in blood ?
(A) Streptococcus
(B) Rhizopus nigricans
(C) Monoscus purpureus
(D) Trichoderma polysporum
What is produced by Arabia Gossipeae ?
(A) Vit - B12
(B) Riboflavin
(C) Lipase
(D) Glucomylase
Which are the processes used to remove floating debris and grit ?
Filtration and Leaching
(B) Filtration and Sedimentation
(C) Sedimentation and Distalization
(D) Filtration and Distalization
Choose the correct option for effluent.
(A) bottom water of sludge producd in primary treatment of STPs.
(B) Upper free water of sludge produced by Filtration and sedimentation.
(C) Remnant water of STP.
(D) Remnant water of activated sludge in STPs.
Which is the biological process of STPs ?
(A) Distalization
(B) Filtration
(C) Secondary
(D) Sedimentation
Where does flocks-formation and flocks sedimentation occur ?
(A) In aeration tank, In effluent settling tank
(B) In anaerobic sludge digestor, Primary tank
(C)Primary tank, Secondary tank
(D)anaerobic sludge digestor, settling tank
Which is the correct sequence for purification in STPs ?
(A)Effluent - Primary sludge - flocks - Activated sludge - Biogas
(B)Flocks - Activated sludge - Effluent - Biogas
(C)Primary sludge - Flocks - Activated sludge - Effluent - Biogas
(D)sludge - Effluent - Flocks - Activated sludge - Biogas
Which is the correct sequence to purify dirty water in cities ?
(A) Aerobic process - Physical process - Anaerobic process
(B) Physical process - Anaerobic process - Aerobic process
(C) Physical process - Aerobic process - Anaerobic process
(D) Anaerobic process - Aerobic process - Physical process
Which are useful bacteria for biogas production?
(A) Streptococcus
(B) Methanotrophs
(C) Xubacteria
(D) Methanogens
Which gas is not present in biogas?
(A) H2S
(B) CH4
(C) CO2
(D) NO2
On which material bacteria act in biogas production ?
(A) Glycogen
(B) Cellulose
(C) Lignin
(D) Suberin
Which institute of India has put efforts to develop biogas technology ?
(A) IVRI
(B) KVIC
(C) IARI
(D) B and C both
What is used to control nematodes in cereal crops, vegetables and fruits ?
(A) Fungicides
(B) Weedicides
(C) Bionemedicides
(D) Pesticides
Which Bioinsecticide is used to produce disease in insects and some arthropods ?
(A) Pseudomonas
(B) Trichoderma
(C) Baculo virus
(D) Rhizobium
Which organism produces Pest Quantum 4000 that is proved effective for cereals and vegetable crops ?
(A) Pseudomonas
(B) Cyanobacteria
(C) Baculo virus
(D) Trichoderma Fungi
Which group of organism is used as biofertilizer?
(A) Pseudomonas, Rhizobium, Trichoderma
(B) Baculo virus, Azospirillum, Cyano bacteria
(C) Rhizobium, Azotobactor, Anabaena, Nostoc
(D) Anabaena, Bacillus thurengiensis, Trichoderma
Mycorrhiza means...
(A) Symbiotic association of bacteria and fungi
(B) Symbiotic association of fungi and plant
(C) Symbiotic association of bacteria and plant
(D) None of the above
Which group of organism is N2 fixative ?
(A) Azotobactor and Azospirillum
(B) Anabaena and Nostoc
(C) Azotobactor and Oscillatoria
(D) Azospirillum and Anabaena
Which is the correct option for free living and symbiotic fungi ?
Glomus and Azospirillum
(B) Trichoderma and Glomus
(C) Glomus and Rhizopus
(D) Trichoderma and Azospirillum
Which is the common organism for Flocks and Mycorihiza ?
(A) Bacteria
(B) Fungi
(C) Algae
(D) Virus
Which is not proper for Mycorrhiza ?
(A) Increases immunity.
(B) Absorbs phosphorus from soil.
(C) Fixes free N2
(D) Protects against salinity and drought.
Which of the following group is autotrophic ?
(A) Oscillatoria, Anabaena, Rhizopus
(B) Nostoc, Aspergillus, Anabaena, Rhizopus
(C) Oscillatoria, Amoeba, Nostoc, Cyanobacteria
(D )Oscillatoria, Anabaena, Nostoc, Cyanobacteria
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