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Microbes In Human Welfare

Question

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Give examples to prove that microbes release gases during metabolism.

Solution

1. Large holes in ‘Swiss Cheese’ are due to production of large amount of C0₂released by a bacterium named Propionibacterium sharmanii.

2. The puffed up appearance of dough is due to the production of C0₂ gas by yeast, Saccharomyces cerevisiae.

3. Methane, H₂S and C0₂ are produced during microbial digestion of organic compounds in case of secondary treatment of sewage.

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