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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Microbes and Human Welfare Set 2

Q1 | Which is correct sequence for purification process of STPs ?
  • Primary Sludge ?Effluent?Flocks ?Active Sludge ?Biogas
  • Flocks ?Primary Sludge ?Effluent ?Active Sludge ?Biogas
  • Primary Sludge ?Effluent ?Active Sludge ?Flocks ?Biogas
  • Effluent?Flocks ?Primary Sludge ?Active Sludge ?Biogas
Q2 | Which product is synthesized by micro organism at commerical level for mankind ?
  • Vaccine
  • Biofuel
  • Alcohol
  • All the given
Q3 | Effluent means....
  • Water remaining under the primary sludge.
  • Solid compunds of the sedimentation
  • Water remaining over the primary sludge
  • Flocks forms from the primary sludge.
Q4 | Which group of micro organism is useful as a bio control agent ?
  • Cynobacteria, Bacula virus, Trichoderma
  • Trichoderma, Psuedomonas, Bacillus Thuringiensis
  • Rhizhobiam, Cynobacteria, Psuedomonas
  • All the given
Q5 | Which bacteria are useful in anaerobic sludge digestures tank ?
  • Hypo geal
  • Aerobic
  • Free living
  • Aneorobic
Q6 | Which one correct for the free living and symbiotic funges ?
  • Glomus and Rhyzopu
  • Glomus and Azospirillum
  • Trichoderma and Rhizopus
  • Trichoderma and Azospirillum
Q7 | Formation of flocks means....
  • Assoicated of virus with the bacteria remains in water
  • Bactaria which associated with the mychoriza of the fungus of water
  • Bactaria which associated with the mychorriza of the fungus of soil
  • Bactaria which associated with the solid waste of the water
Q8 | In which tank flocks is sedimenated and forms respectively ?
  • Settling tank, Aeration tank
  • Aeration tank, Effluent tank
  • Aeration tank, Settling tank
  • Effluent tank, Anearoble tank
Q9 | Who has established Ganga nad Yamuna action plan ?
  • IARI
  • KVIC
  • Ministry of forest and Environment
  • Integrated pest control management
Q10 | What is sedimantated flocks ?
  • Passive sludge
  • Primary sludge
  • Active sludge
  • None of them
Q11 | Which statement is correct for STPs ?
  • Value of BOD is decrease in effluent.
  • Flocks is sedimanted in settling tank.
  • At end of process biogas is form
  • (d) All the given
Q12 | Which odd for mixed gases which produces in anerobic sludge diagesters ?
  • CO2
  • CH4
  • H2S
  • CH3
Q13 | Which bacteria is remain in alimentary canal of herbivorus ?
  • Azetobactor
  • Methenogens
  • Azospirillium
  • Bacillus
Q14 | Which biological process will take place in STPs ?
  • Flock
  • Filteration
  • Sedimentation
  • (b) & (c) both
Q15 | What is indirectly called the measurment of organic matter of water ?
  • BOD
  • DOB
  • COD
  • DOC
Q16 | From which compound methane gas is produced by bacteria ?
  • lipase
  • Amylase
  • Cellulase
  • Protease
Q17 | Which gas will produced in anearobic sludge digesteres ?
  • CO2
  • H2S
  • CH4
  • All the given
Q18 | Which micro organism is irrelevent as a biocontrol agent ?
  • Viru
  • Bectaria
  • Algae
  • Fungus
Q19 | Which scientist has invented Antibodies ? (KCET 2004)
  • Ernest chain
  • Howard Florey
  • Alexander Fleming
  • W.Fleming
Q20 | Which bacterial group is useful in biogas production ? (JIPMER 2000)
  • Rhizobium
  • Methanogens
  • Argonotrocs
  • Eubectaria
Q21 | Which symbiotic bacteria is N2 fixative with the root nodule of leguminious plant ? (AFMC 1998)
  • Azospyrillium
  • Clostridium
  • Azotobactor
  • Rhizobium
Q22 | Which living organism works as bio-fertiliser ? (PMT 1998)
  • Azzola
  • Clostridium
  • Azotobactor
  • Rhizobium
Q23 | Which micro organism is useful in production of citric acid ? (CBSEPMT 1995)
  • Azotobactor
  • Penicillium
  • Asperzilus niger
  • Clostridium
Q24 | By which process cheese and toddy is obtained ? (PMT 1998)
  • Fermantation
  • Distillation
  • Pasuirisation
  • Hydrolisis
Q25 | To which BOD is related ? (MP MPT 2002)
  • Microbes and organic matter
  • Organic compound
  • Microbes
  • None of them