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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ८

How microorganisms are useful in the field of medicine?

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प्रश्न

How microorganisms are useful in the field of medicine?

संक्षेप में उत्तर
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उत्तर

Role of microbes in medicine:
We obtain antibiotics and vaccines from microbes.

  1. Antibiotics: It is a substance produced by living organisms which is toxic to other organisms. The antibiotic penicillin got from the fungus Penicillium chrysogenum is used to treat diseases like tetanus, diphtheria. Streptomycin got from streptomyces bacteria is used to cure bacterial infections like the plague.
  2. Vaccines: They are prepared from dead or weakened microbes. When a vaccine is injected into the body of a patient, it produces antibodies to fight the germs. These antibodies protect the body from infections in the future. Example: MMR vaccine for measles.
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अध्याय 16: Microorganisms - Exercises [पृष्ठ १९०]

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सामाचीर कलवी Science [English] Class 8 TN Board
अध्याय 16 Microorganisms
Exercises | Q VIII. 2. | पृष्ठ १९०

संबंधित प्रश्न

The process of conversion of sugar into alcohol is called ___________.


How can the soil polluted by acid rain be made fertile again?


Which fuels are obtained from biomass?


_________ is used in the commercial bakery industry.


Write a short note.

Probiotics


Explain products made from microbes and their uses.


Explain biofuel production with the help of diagram.


Read the following paragraph and write the answers to the questions asked.

Sulphuric acid is present in the acid rain and materials coming out of mines. You know that erosion of metals present in statues, bridges and buildings occurs due to it. Sulphuric acid is a source of energy for some species of bacteria like Acidiphilium spp. and Acidithiobacillus ferrooxidans. Hence, these bacteria can control the soil pollution occurring due to acid rain. Water soluble salts of uranium are present in the wastes produced during electroplating and in effluent released in the environment from the atomic energy plant. Geobacter convert these salts of uranium into insoluble salts and thereby prevent those salts from mixing with groundwater sources.

  1. What causes metal erosion in statues, bridges and buildings?
  2. Sulphuric acid is the source of energy for which bacteria?
  3. What kind of pollution do these bacteria control?
  4. What are the water soluble salts in atomic energy plants and in the process of electroplating?
  5. Which bacteria prevent these salts from mixing with ground water by converting them Into insoluble salts?

______ is a biocontrol agent.


Complete the following chart:


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