Q9. Differentiate between:
(c) Rods and cones
Rods |
Cones |
1. They are sensitive to dim light. |
1. They are sensitive to bright light. |
2. Rods contain the pigment rhodopsin. |
2. Cones contain the pigment iodopsin. |
3. They have no role to play in colour vision. |
3. They are responsible for colour vision. |
4. Only one kind of rods exist. |
4. There are three kinds of cones-red, blue and green. |