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
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
What will be the pO2
in the atmospheric air compared to those in the
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
Have you heard about hypoxia? Try to gather information about it, and discuss with
(a) IRV and ERV
(b) Inspiratory capacity and Expiratory capacity
(c) Vital capacity and Total lung capacity
What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy
human in an hour.