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    Differentiate between:

    Rods and cones

Answers (1)

Rods

Cones

1. They are sensitive to dim light and their integration is long. Hence, slow response.

1. They are sensitive to bright light and their integration time is fast. Hence, fast response.

2. Rods contain the pigment rhodopsin. Deficiency of it causes night blindness

2. Cones contain the pigment iodopsin. Deficiency of it causes blindness.

3. They have no role to play in imparting colour vision and are not differentiated.

3. They are responsible for colour vision and are differentiated into- red, blue and green.

4. They are found in the periphery of the retina.

4. They are found in the centre of the retina.

Posted by

Priyanka Kumari

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