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 4 - Self-Quiz - Page 75: 5


B-phospholipids and protein

Work Step by Step

The phospholipids create a bilayer and their characteristics of having a hydrophilic phosphate head and a hydrophobic fatty acid tail are why the bilayer forms and partially are the reason why the membrane is semipermeable. Proteins act as channels, pumps for molecules that can't move through the membrane easily due to size or charge.
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