Human Health and Disease · NEET Preparation Zoology
Which statement correctly describes an innate immune defense in humans?
Practice question from Human Health and Disease (NEET Preparation Zoology), with the correct answer and a step-by-step solution.
easy · MCQ · Q-654765
Which statement correctly describes an innate immune defense in humans?
- A.Antibodies produced by plasma cells specifically neutralise a particular pathogen.
- B.Interferons released by virus-infected cells help protect neighbouring cells from viral infection.Correct answer
- C.Memory B cells form a physical barrier against pathogens.
- D.Vaccination provides protection through pre-existing immune memory only.
Solution
Interferons are antiviral proteins released by infected cells. They help nearby healthy cells resist viral infection and are part of innate immunity. Antibodies and memory cells are components of acquired immunity.
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