Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 21 - The Immune System: Innate and Adaptive Body Defenses - Review Questions - Page 799: 6

Answer

D

Work Step by Step

Haptens are small molecules ( hormones or peptides) that, by themselves, are not immunogenic. However, if they react with a large molecule (protein), they can elicit an immune response.
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