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 45 - Sensory Systems - 45.2 - Chemoreceptors Respond to Specific Molecules - 45.2 Recap - Learning Outcomes - Page 967: 1

Answer

Each expressed receptor protein is found in a limited number of olfactory receptor neurons, and each of these neurons is responsible for expressing only one type of receptor. Olfactory sensitivity allows for the large number of odorant molecules to be distinguished. Due to the complexity of an odorant molecule, there can be several regions that may bind to differing receptor proteins.

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