Innate Immunity: Non-Specific Defense — NEET Biology
✅ Asked in NEET 2025Which of the following type of immunity is present at the time of birth and is a non-specific type of defence in the human body?
Which of the following type of immunity is present at the time of birth and is a non-specific type of defence in the human body?
Select the incorrect statement with respect to acquired immunity. (NEET 2022)
Answer & NCERT explanation
Correct answer: B — Innate immunity
Innate immunity is present at the time of birth and provides non-specific defense against pathogens. It includes physical barriers, cellular defenses, and molecular defenses that act immediately. Acquired immunity develops after exposure and is specific. Cell-mediated and humoral are types of acquired immunity, as described in NCERT immunity chapter.
Read more NCERT concept on the PYQ
Innate immunity is non-specific type of defence, that is present at the time of birth. This is accomplished by providing different types of barriers to the entry of the foreign agents into our body. Innate immunity consist of four types of barriers. These are:
Innate immunity is the body's first line of defense that you're born with—it's non-specific, meaning it acts against all pathogens equally without recognizing them specifically. NTA tests whether students understand that innate immunity works through physical, chemical, and biological barriers (skin, mucus, stomach acid, white blood cells) rather than antibodies. The common mistake is confusing innate immunity with adaptive immunity, which is specific and develops after exposure. Remember: innate = present at birth, non-specific, immediate response; adaptive = develops later, specific, learned response. This distinction is fundamental to understanding how your body fights infection.
What does NCERT say about Innate immunity non-specific type?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.