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Mycoplasma and Bacteria MCQ - Multiple Choice Question and 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

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

Rhizobium
Nitrosomonas
Beggiatoa
Nitrobacter

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

Nitrifying bacteria
Nitrogen fixing bacteria
Denitrifying bacteria
Putrefying bacteria

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

bacterioviridim
bacteriochlorophy11
chlorophyll
both (a) and (c)

Question No : 12
Bacteria reproduce

asexually only
sexually only
mostly asexually
mostly sexually

Question No : 13
Tetanus is caused by

Bacillus coli
Streptococcus spp.
Pasteurella pestis
Clostridium tetani

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

Sewage disposal
Nitrogen fixation
Emulsification of fat
None of these