Question

Name the coloured pigment present in rods and cones.

Answer 1

Rods -

1. These are responsible for vision at low light levels. They do not mediate colour vision and have a low spatial acuity.
2. Rod cells are made up of rhodopsin protein.

Cones -

1. These are responsible for colour vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.
2. Cones cells are made up of iodopsin pigment.