NEET Exam > NEET Videos > Fun Video: Immunity, Innate Immunity (Part - 1)
Fun Video: Immunity, Innate Immunity (Part - 1) Video Lecture - NEET
FAQs on Fun Video: Immunity, Innate Immunity (Part - 1) Video Lecture - NEET
| 1. What is immunity? |  |
Ans. Immunity refers to the ability of an organism to resist or defend against harmful microorganisms and other foreign substances that can cause diseases. It is a complex system of cells, tissues, and organs that work together to protect the body from infections.
| 2. What is innate immunity? | |
Ans. Innate immunity, also known as natural or non-specific immunity, is the first line of defense against pathogens. It is a rapid response that is present from birth and does not require prior exposure to the pathogen. Innate immunity includes physical barriers (such as skin and mucous membranes), chemical barriers (such as stomach acid and antimicrobial substances), and cellular defenses (such as phagocytes and natural killer cells).
| 3. How does innate immunity work? | |
Ans. Innate immunity works through various mechanisms. Physical barriers like skin and mucous membranes prevent the entry of pathogens into the body. Chemical barriers, such as stomach acid and antimicrobial substances, kill or inhibit the growth of pathogens. Phagocytes engulf and destroy pathogens, while natural killer cells target infected cells. Additionally, inflammation and fever are part of the innate immune response.
| 4. What is the difference between innate and adaptive immunity? | |
Ans. Innate immunity provides immediate and non-specific defense against pathogens, whereas adaptive immunity is a specific response that develops after exposure to a particular pathogen. Innate immunity is present from birth, while adaptive immunity develops over time. Adaptive immunity involves the production of specific antibodies and memory cells that provide long-term protection against specific pathogens.
| 5. How does innate immunity contribute to overall immunity? | |
Ans. Innate immunity plays a crucial role in overall immunity by providing rapid and immediate defense against pathogens. It acts as the first line of defense, preventing the entry and spread of pathogens in the body. Additionally, innate immunity helps to activate and shape the adaptive immune response, which leads to the production of specific antibodies and memory cells for long-term protection.
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Nov 17, 2024 Last updated |
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