Question

Differentiate between the following pairs on the basis of what is mentioned within brackets:

Rods and Cones of Retina (Type of pigment).

Answer 1

Photoreceptor cells of the retina:

The human retina contains two types of photoreceptor cells - Rod cells and cone cells.

Rod cells:

1. These are rod-shaped cells.
2. They help us to see objects in dim light.
3. Rod cells generally form black and white vision.

Cone cells:

1. These are cone-shaped cells.
2. They are responsible for color vision.
3. They help us to see objects in bright light.

Rod cells	Cone cells
Rod cells contain rhodopsin pigment.	Cone cells contain iodopsin pigment.