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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Give scientific reason. Probiotics have got more importance in recent times. - Science and Technology 2

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प्रश्न

Give scientific reason.

Probiotics have got more importance in recent times.

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टीपा लिहा

उत्तर

Probiotics have got more importance in recent times due to the following reasons:

  1. Probiotics are healthy foodstuffs which contain active bacteria such as Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium bifidum, etc.
  2. These microbes form colonies of useful microbes in the alimentary canal and maintain the balance of beneficial intestinal micro-organisms that help in digestion, and decrease the population of harmful microbes such as Clostridium.
  3. They also improve resistance and lower the ill effects of harmful substances formed during metabolic activities.
  4. When we take antibiotics, the useful microbes in the alimentary canal become inactive. These microbes can be made active by consuming probiotics.
  5. Also, probiotics are used for treatment of diarrhoea and treatment of poultry diseases.
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पाठ 7: Introduction to Microbiology - Give scientific reasons

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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.

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  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?

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(d) Paramecium (iv) Bacteria

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