The alveoli and blood capillaries make up the gas exchange surface of the lungs, and as the arrows in the diagram (Figure 3) illustrate, this is where oxygen and carbon dioxide move in a particular direction. a) With reference to simple diffusion, explain why oxygen and carbon dioxide move in the directions illustrated by the arrows. b) The gas exchange surface is specifically adapted to maximise the transport of oxygen and carbon dioxide in these illustrated directions. Explain at least three of these adaptations.
The alveoli and blood capillaries make up the gas exchange surface of the lungs, and as the arrows in the diagram (Figure 3) illustrate, this is where oxygen and carbon dioxide move in a particular direction. a) With reference to simple diffusion, explain why oxygen and carbon dioxide move in the directions illustrated by the arrows. b) The gas exchange surface is specifically adapted to maximise the transport of oxygen and carbon dioxide in these illustrated directions. Explain at least three of these adaptations.
Human Biology (MindTap Course List)
11th Edition
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter10: The Respiratory System
Section: Chapter Questions
Problem 10SQ
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The alveoli and blood capillaries make up the gas exchange surface of the lungs, and as the arrows in the diagram (Figure 3) illustrate, this is where oxygen and carbon dioxide move in a particular direction.
a) With reference to simple diffusion, explain why oxygen and carbon dioxide move in the directions illustrated by the arrows.
b) The gas exchange surface is specifically adapted to maximise the transport of oxygen and carbon dioxide in these illustrated directions. Explain at least three of these adaptations.
Transcribed Image Text:K
H
Carbon
dioxide out
Oxygen in
Oxygen
Figure.3 The structure of the Respiratory System
Carbon
dioxide
L
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