useful and harmful bacterial short notes
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Answer:
Along with the beneficial importance of bacteria, they also have some harmful effect on the human body. Some bacterial species are the source of causing diseases like typhoid fever, tuberculosis, cholera, syphilis and food borne illness. To kill harmful bacteria, antibiotics are used.
Explanation:
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Answer:
Microorganisms can either be beneficial and are helpful in human welfare, while others are disease-causing and toxic enough to make us ill. The different types of microorganisms include:
Useful Microorganisms
These form a significant part of the ecosystem and participate in the production of minerals and gases like oxygen, carbon dioxide.
They also feed on the dead and decaying matter by converting the complex compounds into the simpler ones.
The bio-geochemical cycle, such as the nitrogen cycle is an important example of useful microorganisms.
Microorganisms are used in various industries for the production of various metabolites such as ethanol, riboflavin, lactic acid, and butanol.
Harmful Microorganisms
There are a number of microorganisms that are responsible for food spoilage, diseases and infections. Such microorganisms are known as harmful microorganisms.
Bacteria are the most dangerous of all microorganisms and are responsible for several infectious diseases such as tuberculosis, cholera, diptheria, etc. Viruses are also responsible for certain fatal diseases such as AIDS, influenza, etc. Fungi are also harmful and can lead to certain skin infections and allergies.
Thus, we know that microorganisms can be useful as well as harmful.
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