Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 6 - Cell Membranes - 6.4 - Active Transport across Membranes Requires Energy - 6.4 Recap - Learning Outcomes - Page 125: 3

Answer

A channel protein has a pore made of polar amino acids and water. It is embedded in the hydrophobic bilayer by its coating of non-polar groups. The integral protein alters its shape when a stimulating ligand binds to it, opening the pore to facilitate the diffusion of hydrophilic (polar) compounds.

Work Step by Step

A channel protein has a pore made of polar amino acids and water. It is embedded in the hydrophobic bilayer by its coating of non-polar groups. The integral protein alters its shape when a stimulating ligand binds to it, opening the pore to facilitate the diffusion of hydrophilic (polar) compounds.
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