NEET 2019
- Exam
- NEET
- Year
- 2019
- Subject
- Zoology
- Chapter
- Human Health and Diseases
NEET 2019 · Zoology · Human Health and Diseases
Humans have acquired immune system that produces antibodies to...
Humans have acquired immune system that produces antibodies to neutralise pathogens. Still innate immune system is present at the time of birth because it
Options
- Ais very specific and uses different macrophages
- Bproduces memory cells for mounting fast secondary response
- Chas natural killer cells which can phagocytose and destroy microbes
- Dprovides passive immunity
Correct answer
C. has natural killer cells which can phagocytose and destroy microbes
Step-by-step solution
Innate immunity is non-specific type of defence that is present at the time of birth because it has natural killer cells which can phagocytose and destroy microbes (cellular barriers). Other forms of innate immunity are physical barriers, physiological and cytokine barriers.