Anatomy & Physiology: The Unity of Form and Function, 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073403717
ISBN 13: 978-0-07340-371-7

Chapter 17 - Section 17.4 - Figure 17.19 - Cyclic AMP as a Second Messenger - Page 656: 1

Answer

Fig 17.19 Steroid hormones do not act through the agency of second messengers.

Work Step by Step

Steroid hormones enter target cells and act on receptors within the cells. They do not bind to membrane receptors or activate second messengers like c-AMP.
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