Psychology & Sociology · Mr. Pankow: Sensation, Perception & Cognition

Question

The steps to the phototransduction cascade include:
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Answer

The steps to the phototransduction cascade include:
light hits cis-retinal and converts it to trans-retinal
rhodopsin changes shape
transducin gets released from rhodopsin
transducin binds to a phosphodiesterase
phosphodiesterase converts cGMP to GMP
Na+ channels close as a result of low cGMP
rod cell becomes hyperpolarized and turned OFF
7 Figure16.4 1: The steps to the phototransduction cascade include: light hits cis-retinal and converts it to trans-retinal rhodopsin c…

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