Chapter 22 - Slide 1 Chapter 22 Gas Exchange Slide 2...

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Unformatted text preview: Slide 1 Chapter 22: Gas Exchange Slide 2 Remember this? Energy Water Carbon dioxide Oxygen gas Glucose Slide 3 Overview of Gas Exchange Lung Breathing O 2 CO 2 Circulatory system Transport of gases by the circulatory system Mitochondria CO 2 O 2 Capillary Cell Exchange of gases with body cells Slide 4 Respiratory Surfaces • Part of the animal where gasses are exchanged with Part of the animal where gasses are exchanged with the environment the environment • Covered with layer of living cells Covered with layer of living cells • Must be moist for gas diffusion Must be moist for gas diffusion Slide 5 Cut Cross section of respiratory surface (the skin covering the body) Capillaries CO 2 O 2 Slide 6 Body surface Respiratory surface (gill) Capillary CO 2 O 2 Slide 7 Body surface Respiratory surface (air tubes) Body cells (no capillaries) O 2 CO 2 Slide 8 Body surface Capillary O 2 CO 2 Respiratory surface (within lung) CO 2 O 2 Slide 9 Direction of water flow Blood vessels Oxygen-rich blood Gill filaments Gill arch Gill arch Oxygen-poor blood...
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