Have you heard about hypoxia? Try to gat | Class 11 Biology Chapter Breathing and Exchange of Gasses, Breathing and Exchange of Gasses NCERT Solutions

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Academic session 2026-27, Chapter 14 in the current curriculum.

Welcome to the NCERT Solutions for Class 11 Biology - Chapter Breathing and Exchange of Gasses. This page offers a step-by-step solution to the specific question from Exercise 1, Question 12: Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 12: Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.
Answer:

Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO2, inadequate oxygen, etc. The different types of hypoxia are discussed below.

Hypoxemic hypoxia

In this condition, there is a reduction in the oxygen content of blood as a result of the low partial pressure of oxygen in the arterial blood.

Anaemic hypoxia

In this condition, there is a reduction in the concentration of haemoglobin.

Stagnant or ischemic hypoxia

In this condition, there is a deficiency in the oxygen content of blood because of poor blood circulation. It occurs when a person is exposed to cold temperature for a prolonged period of time.

Histotoxic hypoxia

In this condition, tissues are unable to use oxygen. This occurs during carbon monoxide or cyanide poisoning.

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 Breathing and Exchange of Gasses.
  • 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.

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Comments

  • deep
  • Dec 14, 2019

vry nice ,this answer is vry hlpful for me

  • Saroj
  • Jun 01, 2019

Nice one😊

  • Ishika
  • Feb 24, 2019

Really osm

  • Ishika
  • Feb 24, 2019

Really fab

  • taniya
  • Feb 07, 2019

Good one

  • Jayalekshmy
  • Nov 14, 2018

Nice information

  • sumeeth
  • Apr 23, 2017

thanks a ton

  • mustaque
  • Mar 15, 2016

Nic

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 12: Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.....

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