Question

Gustatory cells are present in

• A. Nose epithelium
• B. Taste bud
• C. Retina
• D. Inner ear

Answer 1

The correct option is B

Taste bud

The correct option is B:

Explanation for the correct option:

1. The human tongue carries four different types of taste buds (sweet, sour, salty, and bitter) on the top and the sides of the tongue.
2. There are about 10,000 taste buds present on the human tongue.
3. These taste buds carry a special type of taste-sensitive cells called gustatory cells.
4. These gustatory cells or sensory cells are one kind of chemoreceptors, that can detect four different tastes.

The explanation for the incorrect options:

Option-A

1. The nose epithelium of the nasal cavity carries olfactory receptor cells (chemoreceptors).
2. Different types of smells are detected by the olfactory receptor cells.

Option-C

1. The retina is the innermost layer of the eyeball.
2. It carries two different types of photosensitive cells (rod cells and cone cells).
3. Rod cells are sensitive to dim light and cone cells are sensitive to colours.

Option-D

1. Human ears have three different parts- the external ear, the middle ear, and the inner ear.
2. Cochlea (snail-like structure) is present inside the inner ear that carries a special structure called the organ of Corti.
3. The organ of Corti carries auditory receptor cells.

Final answer: The gustatory cells are present in the taste bud of the tongue.