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Chapters
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
Solutions for Chapter 17: Breathing and Exchange of Gases
Below listed, you can find solutions for Chapter 17 of CBSE, Karnataka Board PUC NCERT for Class 11 Biology.
NCERT solutions for Class 11 Biology Chapter 17 Breathing and Exchange of Gases Exercises [Page 277]
Define vital capacity. What is its significance?
State the volume of air remaining in the lungs after a normal breathing.
Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why?
What are the major transport mechanisms for CO2? Explain.
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
Explain the process of inspiration under normal conditions.
How is respiration regulated?
What is the effect of pCO2 on oxygen transport?
What happens to the respiratory process in a man going up a hill?
What is the site of gaseous exchange in an insect?
Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?
Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.
Distinguish between IRV and ERV
Distinguish between Inspiratory capacity and expiratory capacity.
Distinguish between Vital capacity and Total lung capacity
What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy human in an hour.
Solutions for Chapter 17: Breathing and Exchange of Gases
NCERT solutions for Class 11 Biology chapter 17 - Breathing and Exchange of Gases
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Concepts covered in Class 11 Biology chapter 17 Breathing and Exchange of Gases are Respiratory Organs, Exchange of Gases, Transport of Gases - Transport of Oxygen, Respiratory Volumes and Capacities, Disorders of Respiratory System, Human Respiratory System, Breathing – Respiratory Cycle, Regulation of Respiration, Introduction of Breating and Exchange of Gases, Breating and Exchange of Gases (Questions), Transport of Gases - Transport of Carbon Dioxide.
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