NEET2023Biology
Q.
Match List I with List II with respect to human eye.
| List I | List II |
|---|---|
| A. Fovea | I. Visible coloured portion of eye that regulates diameter of pupil. |
| B. Iris | II. External layer of eye formed of dense connective tissue. |
| C. Blind spot | III. Point of greatest visual acuity or resolution. |
| D. Sclera | IV. Point where optic nerve leaves the eyeball and photoreceptor cells are absent. |
Choose the correct answer from the options given below:
- A
A-III, B-I, C-IV, D-II
- B
A-IV, B-III, C-II, D-I
- C
A-I, B-IV, C-III, D-II
- D
A-II, B-I, C-III, D-IV
Solution
Fovea: densely packed cones — site of sharpest vision (A–III). Iris: pigmented diaphragm that controls pupil diameter (B–I). Blind spot: where the optic nerve exits and photoreceptors are absent (C–IV). Sclera: tough outer fibrous coat of the eyeball (D–II).
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