Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 7 - 7.4 - Concept Check: 1

Answer

These pumps use ATP since they work to create gradients of ions. Gradients have energy stored in them, which comes from the ATP which the pumps break down to power the movement of ions against the gradient being created.

Work Step by Step

The key here is to see that pumps work to expend energy and store energy in a gradient. They don't make ATP, which is like a chemical battery, they use it.
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