Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 39 - Self-Quiz - Page 704: 2


b. stomach

Work Step by Step

The stomach is the site where chemical digestion first begins. The acidity of the stomach converts the protein pepsinogen into pepsin, an enzyme that breaks the bonds between amino acids in proteins. This results in proteins being broken down into polypeptides.
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