Compare the hyperpolarizing response to light in vertebrate rods and cones with the depolarizing response to light in the intrinsically photosensitive retinal ganglion cells (ipRGCs) that express melanopsin. Describe the signal transduction cascades downstream of opsin activation and explain why there is an opposite response to light. Compare the change in membrane resistance caused by light in rods (and cones) vs. ipRGCs that express melanopsin.

Compare the hyperpolarizing response to light in vertebrate rods and cones with the depolarizing response to light in the intrinsically photosensitive retinal ganglion cells (ipRGCs) that express melanopsin. Describe the signal transduction cascades downstream of opsin activation and explain why there is an opposite response to light. Compare the change in membrane resistance caused by light in rods (and cones) vs. ipRGCs that express melanopsin.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter43: Sensory Systems

Section43.7: Photoreceptors

Problem 12LO

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