Question

List three ways in which rods and cones differ in structure or function

Answer 1

1.       Cones perceive light in color while rods perceive light in black and white.

2.       Rods can perceive dim light, unlike cones. The rods are located at the edges of the eyes. This is why it easier to perceive an image in the dark through the corner of the eyes.

3.       The discs that compose the cones are usually partially open to the surrounding vitreous fluid while those of the rods are closed.