11th Biology Chapter 14
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– Respiratory Organs and Mechanism of Breathing: The study of different respiratory organs and the mechanism of breathing, including inspiration and expiration, which involve creating pressure gradients to facilitate the exchange of gases like O2 and CO2.
– Respiratory Volumes and Capacities: Understanding terms like Tidal Volume, Inspiratory Reserve Volume, and Expiratory Reserve Volume, which are important in estimating the volumes of air involved in breathing movements and have clinical significance.
– Exchange of Gases: The process of exchange of O2 from the atmosphere with CO2 produced by the cells, commonly known as breathing or respiration, and the factors influencing the diffusion of gases like O2 and CO2 in the body for cellular respiration【4:1†source】.
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 the 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?
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