Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 9 - 9.4 - Concept Check - Page 178: 2


When oxygen is present, it is used to produce the molecules such as NADH which are used to produce a proton gradient. With lower pH/more protons in the intermembrane space, such a gradient would allow for ATP production without oxygen.

Work Step by Step

In Fig. 9.15, see that a large number of protons in the intermembrane space is part of the proton gradient used to drive ATP production. This can happen whether or not oxygen is used to produce the proton gradient.
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.