Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 21, Protists and Fungi - Standardized Test Prep - Page 631: 7



Work Step by Step

Option B is incorrect. Actin is a protein found in muscles. Option C is incorrect. Cellulose is a polymer made of glucose subunits and forms the cell walls of plants. Option D is incorrect. Starch is a polymer made of glucose subunits and is used in plants for carbohydrate storage. Option A is correct. Chitin is a carbohydrate polymer that forms the cell walls of fungi as well as the exoskeleton of insects.
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