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=Chapter 1 The Living World

=Chapter 2 Biological Classification

=Chapter 3 Plant Kingdom

=Chapter 4 Animal Kingdom

=Chapter 5 Morphology of Flowering Plants

=Chapter 6 Anatomy of Flowering Plants

=Chapter 7 Structural Organisation in Animals

=Chapter 8 Cell The Unit of Life

=Chapter 9 Biomolecules

=Chapter 10 Cell Cycle and Cell Division

=Chapter 11 Transport in Plants

=Chapter 12 Mineral Nutrition

=Chapter 13 Photosynthesis in Higher Plants

=Chapter 14 Respiration in Plants

=Chapter 15 Plant Growth and Development

=Chapter 16 Digestion and Absorption

=Chapter 17 Breathing and Exchange of Gases

=Chapter 18 Body Fluids and Circulation

=Chapter 19 Excretory Products and their Elimination

=Chapter 20 Locomotion and Movement

=Chapter 21 Neural Control and Coordination

=Chapter 22 Chemical Coordination and Integration


Chapter 17 Breathing and Exchange of Gases

Download NCERT Solutions for Class 11 Biology

Chapter 17 Breathing and Exchange of Gases

(Link of Pdf File is given below at the end of the Questions list)

In this pdf file you can see answers of following Questions


Question 1:
Define vital capacity. What is its significance?

Question 2:
State the volume of air remaining in the lungs after a normal breathing.
Question 3:
Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why?
Question 4:
What are the major transport mechanisms for CO2 ? Explain.

Question 5:
What will be the pO2 and pCO2 in the atmospheric air compared to those in the alveolar air?
(i) pO2 lesser, pCO2 higher
(ii) pO2 higher, pCO2 lesser

(iii) pO2 higher, pCO2 higher
(iv) pO2 lesser, pCO2 lesser

Question 6:
Explain the process of inspiration under normal conditions.
Question 7:
How is respiration regulated?
Question 8:
What is the effect of pCO2 on oxygen transport?

Question 9:
What happens to the respiratory process in a man going up a hill?
Question 10:
What is the site of gaseous exchange in an insect?
Question 11:
Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?
Question 12:
Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.
Question 13:
Distinguish between
(a) IRV and ERV
(b) Inspiratory capacity and Expiratory capacity
(c) Vital capacity and Total lung capacity
Question 14:
What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy human in an hour.


Breathing and Exchange of Gases Class 11 pdf ncert solutions Biology Download, All ncert Solutions class 9 to 12

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