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Get Answers to all your Questions
- #National Eligilibility Cum Entrance Test Phase 2
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Photosensitive compound in human eye is made up of :
- Option 1)
Guanosine and Retinol
- Option 2)
Opsin and Retinal
- Option 3)
Opsin and Retinol
- Option 4)
Transducin and Retinene
Answers (2)
Visual cortex -
the photosensitive compounds (photopigments) in the human eyes is composed of opsin (a protein) and retinal (an aldehyde of vitamin A). Light induces dissociation of the retinal from opsin resulting in changes in the structure of the opsin. This causes membrane permeability changes.
- wherein
As a result, potential differences are generated in the photoreceptor cells. This produces a signal that generates action potentials in the ganglion cells through the bipolar cells. These action potentials (impulses) are transmitted by the optic nerves to the visual cortex area of the brain, where the neural impulses are analysed and the image formed on the retina is recognised based on earlier memory and experience.
Photosensitive compound are opsin and retinal.
Option 1)
Guanosine and Retinol
This is incorrect option
Option 2)
Opsin and Retinal
This is correct option
Option 3)
Opsin and Retinol
This is incorrect option
Option 4)
Transducin and Retinene
This is incorrect option
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