Question

The part of the human eye, where rod cells and cone cells are located in the

• A. retina
• B. cornea
• C. choroid
• D. sclera

Answer 1

The correct option is A

retina

The correct option is A.

Explanation of correct option :

1. The retina is the innermost layer of the eye. It is made up of photoreceptor cells that are sensitive to light.
2. The optical system of the eye focuses light on the retina to create a two-dimensional image, which is converted into electrical impulses and processed by the visual cortex of the brain, resulting in vision.
3. Photoreceptor cells in the retina are divided into two types: rod cells and cone cells.
4. Bright light activates cone cells, and low light activates rod cells.

Explanation of incorrect options:

Option B:

1. The translucent layer that covers the pupil and iris is known as the cornea.
2. The cornea's job is to refract light rays and focus them on the retina. Both cone and rod cells are absent.

Option C:

1. The choroid is the vascular layer of the eye.
2. It can occur between the cornea and the sclera.

Option D:

1. The sclera is a fibrous protective coating composed primarily of collagen and elastic fibers.
2. There are no photoreceptor cells present.

Final answer: The part of the human eye, where rod cells and cone cells are located in the retina.