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 2 - Section 2.4 - Organic Compounds - Before You Go On - Page 73: 16

Answer

Which reaction—dehydration synthesis or hydrolysis— converts a polymer to its monomers? Hydrolysis. Which one converts monomers to a polymer? Dehydration Synthesis.

Work Step by Step

In hydrolysis, a water molecule ionizes into OH− and H+. An enzyme breaks the covalent bond linking one monomer to another, and adds OH− to one monomer and H+ to the other one. The joining of monomers to form a polymer is called polymerization. Living cells achieve this by means of a reaction called dehydration synthesis
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