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Q. No.Chemosynthetic autotrophic bacteria does not help in recycling of
(1) Nitrogen
(2) Iron
(3) Sulphur
(4) Mangnese
(1) Nitrogen
(2) Iron
(3) Sulphur
(4) Mangnese
Difficulty Level:
Chemosynthetic bacteria does not use which inorganic substrate?
(1) Nitrites
(2) Nitrates
(3) Chlorides
(4) Both a and b
Difficulty Level:
Chemosynthetic autotrophs derive energy by
(1) By sunlight
(2) By oxidation of inorganic substances
(3) By reduction of inorganic substances
(4) By reduction followed by oxidation of inorganic substances
Difficulty Level:
The majority of heterotrophic bacteria are
(1) Decomposers
(2) Autotrophs
(3) Lithotrophs
(4) Organotrophs
Difficulty Level:
Lactobacillus comes under which category
(1) Autotrophs
(2) Lithotrophs
(3) Organotrophs
(4) Heterotrophs
Difficulty Level:
Leguminous plants have bacteria with which kind of mode of nutrition-
(1) Heterotrophs
(2) Autotrophs
(3) Lithotrophs
(4) Organotrophs
Difficulty Level:
Which of the following is not a bacterial disease
(1) Citrus canker
(2) Cholera
(3) Plague
(4) Mumps
Difficulty Level:
Which of the following is not a mode of bacterial reproduction?
(1) Fission
(2) Spore formation
(3) Conjugation
(4) Fragmentation
Difficulty Level:
------- mycoplasma are pathogenic in …….
(1) Many, animals and plants
(2) All, animals and plants
(3) All, animals
(4) All, plants
Difficulty Level:
Which is incorrect regarding protista?
(1) The boundaries of this kigdom is not clear
(2) Forms a link with other organisms
(3) Some have flagella or cilia
(4) No membrane bound organelles
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