Question 11 โ€” Stronger response on second exposure - Questions at the end of the chapter - Chapter 3 Class 8 - Health: The Ultimate Treasure (Curiosity)

Last updated at June 4, 2026 by

Q 11
Question

When our body meets a pathogen for the first time, the immune response is generally low. But on exposure to the same pathogen again, the immune response is much stronger than the first time. Why is it so?

๐Ÿ“š Concept: Immunity and Vaccines

Show answer Hide answer
Answer
The body remembers the germ and fights it faster the second time.

Explanation

  • On the first meeting, the immune system is learning about the germ, so the response is slow.
  • It then remembers the germ for the future.
  • On the next meeting, it recognises the germ quickly.
  • So it attacks faster and stronger, giving better protection.
Immune memory makes the second response quick and strong.
Remove Ads Share on WhatsApp
CA Maninder Singh's photo - Co-founder, Teachoo

Made by

CA Maninder Singh

CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. At Teachoo, he simplifies Accounts, Tax and GST with step-by-step examples so students can apply concepts confidently in exams and real life.

For an uninterrupted learning experience, students can use Teachoo Black to remove ads and focus better.