A person shows strong unusual hypersensi | Class 12 Biology Chapter Human Health and Disease, Human Health and Disease NCERT Solutions

Question:

A person shows strong unusual hypersensitive reactions when exposed to certain substances present in the air. Identify the condition. Name the cells responsible for such reactions. What precaution should be taken to avoid such reactions.

Answer:

If a person is hypersensitive to some substances that are present in the air, he may be allergic to it. Mast cells release some chemicals like histamine and serotonin, in response to these substance this results in the allergic reaction.

Precaution taken to prevent such reaction is to avoid the allergens responsible for particular allergy.


Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Human Health and Disease.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Notice: Undefined index: quesId in /var/www/html/ss_beta/saralstudy/ss_new/web/template/common/comment_section.php on line 3

Comments

Comment(s) on this Question

Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 20: A person shows strong unusual hypersensitive reactions when exposed to certain substances prese....