Biology · Textbook solutions

Breathing and Exchange of Gases

Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. · 15 questions

Exercises

15 q

Ex 14 Q1 $Define vital capacity. What is its significance?$
Ex 14 Q2 $State the volume of air remaining in the lungs after a normal breathing.$
Ex 14 Q3 $Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why?$
Ex 14 Q4 $\text{CO}_2$
Ex 14 Q5 $\text{pO}_2$
Tap an option to check your answer.
Ex 14 Q6 $Explain the process of inspiration under normal conditions.$
Ex 14 Q7 $How is respiration regulated?$
Ex 14 Q8 $\text{pCO}_2$
Ex 14 Q9 $What happens to the respiratory process in a man going up a hill?$
Ex 14 Q10 $What is the site of gaseous exchange in an insect?$
Ex 14 Q11 $Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?$
Distinguish between
Ex 14 Q13 (a) $IRV and ERV$
Ex 14 Q13 (b) $Inspiratory capacity and Expiratory capacity.$
Ex 14 Q13 (c) $Vital capacity and Total lung capacity.$
Ex 14 Q14 $What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy human in an hour.$