Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 6 - Test Your Understanding - Level 1 - Knowledge/Comprehension - Page 123: 1

Answer

B-Chloroplast

Work Step by Step

This is the correct answer because the other options are made up of single-membrane systems that are all connected. The chloroplast is a double membrane structure that we believe to have first been a prokaryotic cell that was "eaten" by a single celled eukaryote. This is the endosymbiotic theory. See concept 6.4 and also page 109 last paragraph.
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