Campbell Biology (10th Edition)

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

Chapter 50 - 50.3 - Concept Check - Page 1117: 4

Answer

Though both are stimulated by photons to trigger another process, these processes are largely distinct.

Work Step by Step

The retina is isomerized, while chlorophyll is not. Energy from the photon triggers an electron transport chain in chlorophyll, whereas the changing molecular shape of the retina triggers a chain reaction that results in nerve impulses.
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