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Which of the following occurs in photoreceptors when they are exposed to the appropriate wavelength of...

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Medical Sciences

Which of the following occurs in photoreceptors when they areexposed to the appropriate wavelength of light?

Opsin and all-trans retinal combine to form rhodopsin.

PDE enzyme is activated, which increases cGMP levels.

Light-gated Na+ channels open, which depolarizes the cell.

cGMP levels decrease, which closes Na+ channels andhyperpolarizes the cell.

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Answer a Opsin and all trans retinal combine to form rhodopsin Others are Incorrect Phototransduction mechanism 1First when light falls it enters Cornea and then through Lens it    See Answer
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