Multiple Choice QuestionsWhich one of the following pairs is wrongly matched?
methanogens - gobar gas
yeast - ethanol
streptomycetes - antibiotic
streptomycetes - antibiotic
The bacterium (Clostridium botulinum) that causes botulism is
a facultative anaerobe
an obligate anaerobe
a facultative aerobe
a facultative aerobe
B.
an obligate anaerobe
The bacterium Clostridium batulinum, causing botulism ( a form of food poisoning) is an obligate anaerobic, endospore-forming, grampositive, rod shaped bacterium found in soil and in many fresh water sediments.
This bacterium produces a toxin, called botulinum toxin which is the most toxic susbtance known (cause fatal food poisoning) but in minute doses it is used to treat certain conditions involving muscle dysfunction.
Curing of tea leaves is brought about by the activity of
bacteria
mycorrhiza
viruses
viruses
Which of the following is correctly matched for the product produced by them?
Acetobacter aceti : Antibiotics
Methanobterium : Lactic acid
Penicillium notatum : Acetic acid
Penicillium notatum : Acetic acid
Which one of the following pairs is not correctly matched?
VItamin B12 → Pernicious anaemia
Vitamin-B6 → Loss of appetite
Vitamin-B1 →Beri-Beri
Vitamin-B2 → Pellagra
Bacterial endotoxin is
A toxic protein that stays inside the bacterial cell
A toxic protein that is excreted into the medium
Lipopolysaccharide located on the surface of the bacteria
None of the above
Which one of the following microbes is the source for vitamin-C?
Pseudomonas sp.
Acetobacter sp.
Aspergillus sp.
Chlorella
Gas gangrene is caused by
Clostridium botulinum
Xanthomonas campestris
Pseudomonas
Clostridium perfringens
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