Question

Identify the part of the human eye where rod cells and cone cells are located

• A. Cornea
• B. Retina
• C. Choroid
• D. Sclera

Answer 1

The correct option is B

Retina

The correct option is B.

Explanation of correct option:

1. The retina is the innermost part of the eye and has maximum sensitivity to light.
2. The photoreceptors, rod cells, and cone cells are present in the retina.
3. Rod cells contain rhodopsin, are sensitive to dim light, and show no response to colors.
4. Cone cells contain idopsin, are sensitive to bright light, and show a response to colors.

Explanation of incorrect options:

Option A:

1. The cornea is a transparent part of an eye and covers its colored portion.
2. The cornea can be easily removed and replaced because it lacks blood vessels.

Option C:

1. The choroid is the middle layer of an eye which is rich in blood vessels and helps in its nourishment.
2. It is a thin layer of tissue between the sclera and the retina.

Option D:

1. The sclera is the outermost layer and a protective covering of the eye.
2. It is the white part of an eye that protrudes out in the front and turns out to be transparent.

Final answer: Retina is the part of the human eye where rod cells and cone cells are located.