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Virus and Bacteria Video Lecture | Science & Technology for UPSC CSE
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FAQs on Virus and Bacteria Video Lecture - Science & Technology for UPSC CSE
| 1. What is the difference between a virus and bacteria? |  |
Ans. Viruses and bacteria are both microscopic organisms, but they have distinct characteristics. Viruses are much smaller than bacteria and cannot survive outside a host cell. They are considered non-living as they do not have cellular structures or metabolic processes. In contrast, bacteria are living organisms with a cellular structure and can survive independently.
| 2. How do viruses and bacteria cause diseases? | |
Ans. Both viruses and bacteria can cause diseases, but they do so in different ways. Viruses invade host cells and use the host's cellular machinery to replicate, leading to cell damage and disease symptoms. Bacteria, on the other hand, can cause diseases by releasing toxins or by directly invading tissues and organs. The specific mechanisms vary depending on the type of virus or bacteria.
| 3. Can antibiotics treat both viral and bacterial infections? | |
Ans. No, antibiotics are not effective against viral infections. Antibiotics specifically target bacteria by interfering with their cellular processes, but they have no effect on viruses. Viral infections are typically managed through antiviral medications or by supporting the immune system's response. It is important to use antibiotics judiciously to prevent the development of antibiotic resistance.
| 4. How can we prevent the spread of viruses and bacteria? | |
Ans. Preventing the spread of viruses and bacteria involves practicing good hygiene habits. This includes frequent handwashing with soap and water, especially before eating or touching the face, covering the mouth and nose when coughing or sneezing, and avoiding close contact with infected individuals. Vaccinations are also available to prevent certain viral and bacterial infections.
| 5. Are all viruses and bacteria harmful? | |
Ans. No, not all viruses and bacteria are harmful. In fact, our bodies naturally harbor many beneficial bacteria that play important roles in digestion and immunity. Additionally, some viruses can infect only specific types of organisms and do not cause disease in humans. However, certain viruses and bacteria can cause severe infections and diseases, and it is important to take appropriate precautions to prevent their spread.
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