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प्रश्न
Big holes in Swiss cheese are made by ______.
विकल्प
a machine
a bacterium that produces methane gas
a bacterium producing a large amount of carbon dioxide
a fungus that releases a lot of gases during its metabolic activities
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उत्तर
Big holes in Swiss cheese are made by a bacterium producing a large amount of carbon dioxide.
Explanation:
The big holes in Swiss cheese are formed by the bacterium Propionibacterium shermanii, which produces a large amount of carbon dioxide (CO2) during fermentation. The CO2 gets trapped inside the cheese, forming characteristic round holes known as “eyes”.
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संबंधित प्रश्न
Give examples to prove that microbes release gases during metabolism.
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A symbiotic nitrogen-fixing bacterium found in root nodules.
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Answer the following question:
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Read the passage given below carefully and answer the questions that follow:
|
The bacterium Bacillus thuringiensis serovar israelensis (Bti) is commercially prepared in various formulations such as liquid, water dispersible granules, powders, and pellets. It is used as a larvicide all over the world due to its ability to produce a toxic protein that primarily targets the larvae of mosquitoes. In Sweden, Bti has been applied on a large scale in the form of commercially available granular formulation Vecto Bac G (Valent BioScience, USA). The applications have taken place in the lower Dalalven River Area to control mass outbreaks of the floodplain mosquito Aedes sticticus. |
- Why does the toxic protein kill the insects but not the bacterium?
- Can the formulation Vecto Bac G be used to eliminate the species of mosquito referred to above? Why?
