NCERT Solutions For Class 11 Biology Breathing and Exchange Gases

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NCERT Solutions For Class 11 Biology Breathing and Exchange Gases Class 11 Biology Class book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 11 Biology chapter wise NCERT solution for Biology for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

Download NCERT solutions for  Breathing and Exchange Gases as PDF.

NCERT Solutions For Class 11 Biology Anatomy of Flowering Plants

NCERT Class 11 Biology Chapter wise Solutions


  • 1 : The Living World
  • 2 : Biological Classification
  • 3 : Plant Kingdom
  • 4 : Animal Kingdom


  • 5 : Morphology of Flowering Plants
  • 6 : Anatomy of Flowering Plants
  • 7 : Structural Organisation in Animals


  • 8 : Cell : The Unit of Life
  • 9 : Biomolecules
  • 10 : Cell Cycle and Cell Division


  • 11 : Transport in Plants
  • 12 : Mineral Nutrition
  • 13 : Photosynthesis in Higher Plants
  • 14 : Respiration in Plants
  • 15 : Plant Growth and Development


  • 16 : Digestion and Absorption
  • 17 : Breathing and Exchange of Gases
  • 18 : Body Fluids and Circulation
  • 19 : Excretory Products and their Elimination
  • 20 : Locomotion and Movement
  • 21 : Neural Control and Coordination
  • 22 : Chemical Coordination and Integration

NCERT Solutions For Class 11 Biology Chapter 17 Breathing and exchange gases

  • 17.1 Respiratory Organs
  • 17.2 Mechanism of Breathing
  • 17.3 Exchange of Gases
  • 17.4 Transport of Gases
  • 17.5 Regulation of Respiration
  • 17.6 Disorders of Respiratory System

NCERT Solutions For Class 11 Biology Breathing and exchange gases

1. Define vital capacity. What is its significance?

2. State the volume of air remaining in the lungs after a normal breathing.

3. Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why?

4. What are the major transport mechanisms for $CO_2$? Explain.

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

6. Explain the process of inspiration under normal conditions.

7. How is respiration regulated?

8. What is the effect of pCOon oxygen transport?

9. What happens to the respiratory process in a man going up a hill?

10. What is the site of gaseous exchange in an insect?

11. Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?

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

13. Distinguish between
(a) IRV and ERV
(b) Inspiratory capacity and Expiratory capacity
(c) Vital capacity and Total lung capacity

14. What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy human in an hour.

NCERT Solutions for Class 11 Biology

NCERT Solutions Class 11 Biology PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 11 Biology includes text book solutions.  NCERT Solutions for CBSE Class 11 Biology have total 22 chapters. 11 Biology NCERT Solutions in PDF for free Download on our website. Ncert Biology class 11 solutions PDF and Biology ncert class 11 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide

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