IB Biology Topic 6.4: Gas Exchange

This video starts by covering the anatomy of the respiratory system. It then moves on to ventilation, looking at the processes of inhalation and exhalation, and the effect of exercise on ventilation rate. This is followed by an examination of the gas exchange process in alveoli before examining diseases that affect this process, including emphysema and lung cancer.

00:00 Introduction
00:22 Review of Respiration
00:36 Lung Anatomy
01:58 Ventilation
02:31 Inhalation
02:58 Exhalation
03:32 Effect of Exercise on Ventilation Rate
04:07 Preview finished!

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