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Draw and/or describe the process of phototransduction from the molecular change in retinal to the change...

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Biology

Draw and/or describe the process of phototransduction from themolecular change in retinal to the change in ion flow throughcGMP-gated ion channels. What would happen if a photoreceptor had amutation that made the phosphodiesterase enzyme constantlyactive?

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3.8 Ratings (375 Votes)
light abosrption converts cis retinal to trans retinal and activating rhodopsin which catatlyseses the replacement of GDP by GTP on transductionT Talpha GTP activates the cGMP phosphodiestrase and converts cGMP to GMPThus reduction of cGMP which kept the cation channels in rod    See Answer
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