Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 22 - The Respiratory System - Review Questions - Page 847: 8



Work Step by Step

Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by diffusion. These gases move from higher concentration to lower concentration down the concentration gradient. Carbon dioxide diffuses from blood to alveoli where as oxygen diffuses from alveoli to the blood
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