Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 6 - Cell Membranes - 6.5 - Large Molecules Enter and Leave a Cell through Vesicles - 6.5 Recap - Learning Outcomes - Page 128: 1

Answer

Energy in the form of ATP is needed for active transport because it works against the concentration gradient. Both primary and secondary active transport cannot be completed without the use of ATP.

Work Step by Step

Energy in the form of ATP is needed for active transport because it works against the concentration gradient. Both primary and secondary active transport cannot be completed without the use of ATP.
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