Q. No.Which of the following is correct with respect to heterocyst
(1) Nostoc, Anabena
(2) Only Anabena
(3) Nostoc
(4) All eubactetia
(1) Nostoc, Anabena
(2) Only Anabena
(3) Nostoc
(4) All eubactetia
Chemosynthetic autotrophic bacteria does not help in recycling of
(1) Nitrogen
(2) Iron
(3) Sulphur
(4) Mangnese
Chemosynthetic bacteria does not use which inorganic substrate?
(1) Nitrites
(2) Nitrates
(3) Chlorides
(4) Both a and b
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
The majority of heterotrophic bacteria are
(1) Decomposers
(2) Autotrophs
(3) Lithotrophs
(4) Organotrophs
Lactobacillus comes under which category
(1) Autotrophs
(2) Lithotrophs
(3) Organotrophs
(4) Heterotrophs
Leguminous plants have bacteria with which kind of mode of nutrition-
(1) Heterotrophs
(2) Autotrophs
(3) Lithotrophs
(4) Organotrophs
Which of the following is not a bacterial disease
(1) Citrus canker
(2) Cholera
(3) Plague
(4) Mumps
Which of the following is not a mode of bacterial reproduction?
(1) Fission
(2) Spore formation
(3) Conjugation
(4) Fragmentation
Mycoplasma are not possessing which of the following features?
(1) Lack cell wall
(2) Pleomorphic
(3) Can't survive without oxygen
(4) Except b all are correct
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