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 48.15 - Data Analysis: 1

Answer

The pure oxygen would create a greater pressure difference between the alveolar space and the blood, speeding aborption of oxygen.

Work Step by Step

See p. 1004 for Fick's Law--the pressure difference determines diffusion rate. Pure oxygen has a much higher concentration of oxygen/oxygen pressure than regular air--this would speed diffusion and help with oxygen needs during strenuous work during a race.
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