Q6.    Give a brief account of:

         (b) Mechanism of vision

Answers (1)
  • The light rays pass through the pupil, lens, aqueous humour, vitreous humour and falls on the retina.
  • The light induces the dissociation of the photo-pigment rhodopsin into opsin and retinal.
  • The dissociation of opsin from the retinal brings changes in the structure of opsin.
  • This generates an action potential in the rods and cones of the retina.
  • The action potential is further transmitted to the ganglion cells through bipolar neurons.
  • It is finally transmitted to the visual cortex of the brain via the optic nerve.
  • The impulses are analysed at the visual cortex and the responses are sent back to form the image on the retina.

Most Viewed Questions

Related Chapters

Preparation Products

Knockout JEE Main (Six Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 9999/- ₹ 8499/-
Buy Now
Knockout JEE Main (Nine Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 13999/- ₹ 12499/-
Buy Now
Knockout NEET (Six Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 9999/- ₹ 8499/-
Buy Now
Knockout NEET (Nine Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 13999/- ₹ 12499/-
Buy Now
Test Series JEE Main 2024

Chapter/Subject/Full Mock Tests for JEE Main, Personalized Performance Report, Weakness Sheet, Complete Answer Key,.

₹ 7999/- ₹ 4999/-
Buy Now
Boost your Preparation for JEE Main with our Foundation Course
 
Exams
Articles
Questions