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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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Differentiate between members of the following pair with reference to what is asked in the bracket.
Near and distant accomodation (shape of lens).
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).
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- The pigment which gets regenerated.
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