Chemosynthetic autotrophic bacteria does not help in recycling of
(1) Nitrogen
(2) Iron
(3) Sulphur
(4) Mangnese
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Chemosynthetic bacteria does not use which inorganic substrate?
(1) Nitrites
(2) Nitrates
(3) Chlorides
(4) Both a and b
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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
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The majority of heterotrophic bacteria are
(1) Decomposers
(2) Autotrophs
(3) Lithotrophs
(4) Organotrophs
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Lactobacillus comes under which category
(1) Autotrophs
(2) Lithotrophs
(3) Organotrophs
(4) Heterotrophs
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Leguminous plants have bacteria with which kind of mode of nutrition-
(1) Heterotrophs
(2) Autotrophs
(3) Lithotrophs
(4) Organotrophs
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Which of the following is not a bacterial disease
(1) Citrus canker
(2) Cholera
(3) Plague
(4) Mumps
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Which of the following is not a mode of bacterial reproduction?
(1) Fission
(2) Spore formation
(3) Conjugation
(4) Fragmentation
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------- mycoplasma are pathogenic in …….
(1) Many, animals and plants
(2) All, animals and plants
(3) All, animals
(4) All, plants
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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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