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Image Formation

Which of the ...

Question

Which of the following results in the generation of potential differences in the photoreceptor cells of eyes?

A

Conversion of retinal into opsin

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B

Conversion of opsin into retinal

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C

Dissociation of the retinal from opsin

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D

Dissociation of the opsin from retinol

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Solution

The correct option is C Dissociation of the retinal from opsin
Dissociation of retinal from opsin results in the generation of potential difference. When light is absorbed by rhodopsin, retinal is split from protein and the rod becomes partially bleached. At the same time nerve impulse is generated, which takes the information about the image to the brain.

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Retinal is derived from which of the following?

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