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Question
Differentiate between members of the following pair with reference to what is asked in the bracket.
Dark and light adaptation (pigments which will be regenerated).
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Solution
| Dark adaptation | Light adaptation |
| Dark adaptation leads to the regeneration of rod and cone cells. | Bleaching Rhodopsin reduces its sensitivity. |
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Adaptation
The figures (A) and (B) given below are showing some kind of adjustment. Study the figures and answer the questions that follow.
| A |  |
 |
B |
- Identify the kinds of adjustments done in the figures (A) and (B).
- Distinguish between the adjustments of figures (A) and (B) on the basis of:
- The size of pupil.
- The pigment which gets regenerated.
- Cells of the retina.
