NEET > Biology Class 12 > Microbes in Human Welfare in One Shot (NCERT)
Microbes in Human Welfare in One Shot (NCERT) Video Lecture - Biology Class 12 - NEET
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FAQs on Microbes in Human Welfare in One Shot (NCERT) Video Lecture - Biology Class 12 - NEET
| 1. What is the role of microbes in human welfare? |  |
Ans. Microbes play a significant role in human welfare. They are used in the production of various food products such as curd, cheese, and bread. They also help in the production of antibiotics, vitamins, and enzymes. Additionally, microbes are used in wastewater treatment and bioremediation to remove pollutants from the environment.
| 2. How do microbes contribute to the field of agriculture? | |
Ans. Microbes have several contributions to agriculture. They are used as biofertilizers, which enhance soil fertility and promote plant growth. Certain microbes, like Rhizobium, form a symbiotic relationship with leguminous plants and help in nitrogen fixation. Other microbes, such as Bacillus thuringiensis, are used as biopesticides to control crop pests.
| 3. Can microbes be harmful to human health? | |
Ans. Yes, some microbes can be harmful to human health. Pathogenic microbes, such as bacteria, viruses, and fungi, can cause various diseases. For example, bacteria like Salmonella and Escherichia coli can cause food poisoning, while viruses like Influenza and HIV can cause viral infections. It is important to maintain proper hygiene and sanitation to prevent the spread of harmful microbes.
| 4. How are microbes used in the production of antibiotics? | |
Ans. Microbes, particularly certain species of bacteria and fungi, are used in the production of antibiotics. These microbes produce natural substances that inhibit the growth of other microorganisms. Penicillin, for example, is produced by the fungus Penicillium. The antibiotics produced by these microbes are used to treat bacterial infections in humans and animals.
| 5. What is the role of microbes in waste management? | |
Ans. Microbes play a crucial role in waste management. They are used in the process of composting, where organic waste is broken down by microbes into nutrient-rich compost. Additionally, certain microbes are used in wastewater treatment plants to break down organic matter and remove pollutants from the water. This helps in maintaining a clean and healthy environment.
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