In the visual system,the main function of rods and cones is to
A)maintain the shape and structure of the eye.
B)reduce the amount of light entering the fovea.
C)transmit light energy to the iris and the pupil.
D)convert light into electrochemical impulses.

Question

Quizplus · Accepted Answer

Rods and cones are photoreceptor cells located in the retina of the eye. Their main function is to convert light energy into electrochemical impulses that can be transmitted to the brain via the optic nerve. Rods are sensitive to low levels of light and are responsible for vision in dimly lit environments, while cones are responsible for color vision and visual acuity in brighter conditions. Therefore, option D is the best choice as it correctly describes the main function of rods and cones.

In the Visual System,the Main Function of Rods and Cones