Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 48 - The Respiratory System - Figure 48.13 - Inquiry Question: 1


Emphysema does two things based on Fick's Law: it reduces alveolar surface area and thus the rate of diffusion, and it raises the fibrosity/thickness of alveolar walls which reduces diffusion.

Work Step by Step

To understand this see the equation for Fick's Law on p.1004. The two changed noted in the alveolae are directly relevant to that equation and, thus, to the rate of diffusion.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.