Mycoplasma and Bacteria MCQ Question with Answer

Mycoplasma and Bacteria MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 8
Food poisoning is generally caused by

Escherichia coli

Clostridium botulinum

Both (a) and (b)

None of these

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Question No : 9
Which of the following bacteria can oxidise hydrogen sulphide to sulphur?

Rhizobium

Nitrosomonas

Beggiatoa

Nitrobacter

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Question No : 10
Bacteria which directly converts atmospheric nitrogen into nitrogen compounds are called

Nitrifying bacteria

Nitrogen fixing bacteria

Denitrifying bacteria

Putrefying bacteria

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Question No : 11
The pigment similar to chlorophyll found in green sulphur bacteria is

bacterioviridim

bacteriochlorophy11

chlorophyll

both (a) and (c)

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Question No : 12
Bacteria reproduce

asexually only

sexually only

mostly asexually

mostly sexually

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Question No : 13
Tetanus is caused by

Bacillus coli

Streptococcus spp.

Pasteurella pestis

Clostridium tetani

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Question No : 14
Of the following, which is not a bacterial action?

Sewage disposal

Nitrogen fixation

Emulsification of fat

None of these

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