Rhodopsin is found in

Options

(a) rods only
(b) whole of retina
(c) cones only
(d) ganglion cells

Correct Answer:

rods only

Explanation:

The rod cells of the retina contain the pigment rhodopsin or visual purple. Rhodopsin consists of a protein component, opsin, linked to a nonprotein, chromatophore (retinal) a derivative of vitamin A. Light falling on the rod is absorbed by the tetinal, which changes its form and separates from the opsin component. This initiates the transmission of a nerve impulse to the brain. The great sensitivity of rhodopsin allows vision in dim light (Night vision).