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Microbes in Human Welfare

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

The bacterium (Clostridium botulinum) that causes botulism is

  • a facultative anaerobe

  • an obligate anaerobe

  • a facultative aerobe

  • an obligate 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. 

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. 


What is the difference between rum and whisky ?

Rum is obtained by the fermention of  sugarcane juice or molasses. It is fermented for a shorter period of time
while
whisky is obtained by fermentation of grains like wheat, corn,barley and rye. The fementation is done for a longer period of time.

Give the source of invertase enzyme (sucrase).

Saccharomyces cerevisiae 

Which bacterium is responsible for the formation of curd from milk?

Lactobacillus  (Lactic acid bacteria).

What is brewing ?

Brewing is a complex fermentation process, which involves the production of malt beverages such as beer, ale and stout. Saccharomyces cerevisiae is used for the process of fermentation.

Name one micro-organism which is used in bakery.

Yeast .