Question

Match List I with List II with respect in human eye. 

	List I		List II
A	Fovea	I	Visible coloured portion of eye that regulates diameter of pupi
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-IV, B-III, C-II, D-I
• B. A-I, B-IV, C-III, D-II
• C. A-II, B-I, C-III, D-IV
• D. A-III, B-I, C-IV, D-II

Answer 1

The Correct Option is D

To match List I with List II regarding parts of the human eye, let us evaluate the options provided:

List I	Description (List II)
Fovea	Point of greatest visual acuity or resolution
Iris	Visible coloured portion of eye that regulates diameter of pupil
Blind spot	Point where optic nerve leaves the eyeball and photoreceptor cells are absent
Sclera	External layer of eye formed of dense connective tissue

Explanation:

• Fovea is known for its role in providing high visual acuity and resolution. Thus, it matches with "Point of greatest visual acuity or resolution." (III)
• Iris is the colored part of the eye responsible for adjusting the pupil size. This description aligns with "Visible coloured portion of eye that regulates diameter of pupil." (I)
• Blind spot is the point where the optic nerve exits the eye, and no photoreceptor cells are present, making it match "Point where optic nerve leaves the eyeball and photoreceptor cells are absent." (IV)
• Sclera is the tough, external layer of the eye, which corresponds to "External layer of eye formed of dense connective tissue." (II)

Based on the analysis, the correct matches are:

A-III: Fovea - Point of greatest visual acuity or resolution

B-I: Iris - Visible coloured portion of eye that regulates diameter of pupil

C-IV: Blind spot - Point where optic nerve leaves the eyeball and photoreceptor cells are absent

D-II: Sclera - External layer of eye formed of dense connective tissue

Therefore, the correct matching option is:

A-III, B-I, C-IV, D-II