Question

Salty taste is perceived by the taste buds located on
A. Tip of the tongue
B. Sides of the tongue
C. Back side of the tongue
D. Both A and B

Answer 1

Hint: Taste receptors are proteins that recognise taste stimuli of different kinds, thus acting as the initial component of the ingested substance sensing and discriminating mechanism. It is possible to categorise taste sensations as belonging to one of at least five types, including characteristics experienced by humans as sweet, salty, sour, bitter, and umami.

Complete answer: Based on anatomy, the sense of taste, one of the five major senses, is described. It is the sensation subserved in mammals by taste receptor cells located in the oral cavity mainly on taste buds. These taste receptor cells are innervated before transmitting messages to other parts of the brain by branches of the seventh, ninth, and tenth cranial nerves that synapse first in the brain stem.
It has identified and functionally characterised mammalian taste receptors that respond to sweet, bitter, and umami stimuli. On the apical membranes of taste receptor cells (TRCs) that reach into the oral cavity, these receptors are expressed. A transduction cascade in TRCs is triggered by the receptor-stimulus-binding event, leading to the depolarization of cells and the release of neurotransmitters on afferent nerve fibres, and eventually the dissemination of sensory information to taste processing areas in the central nervous system.
Near the front of the tongue, the salty and sweet taste buds are located, the sour taste buds line the sides of the tongue, and the bitter taste buds at the back of the tongue are found. There are few taste buds in the centre of the tongue.
So, the correct answer is “Option A”.

Note:
A good number of wart-like bumps under the mucous membrane of the tongue are the flavour papillae. They raise the tongue's surface area many times to make sure that it is possible to detect individual tastes more strongly. This is often called the tongue's magnifying effect. There are some taste buds with sensory cells in the papillas.