Taste buds are clusters special cells set in tiny wells in your tongue. As you chew, tiny particles of food dissolve saliva and trickle down the taste buds.
Each taste bud reacts to in( to, in ) a particular kind of taste - sweet, salty, sour, or bitter.
If the food contains the right flavour, the taste bud is triggered and it immediately sends ❌ a message down to your brain.
Taste buds that respond sweet tastes are the tip of the tongue. Salty flavours are detected just behind on the sides the tongue. Sour things set off taste buds on the sides of your tongue farther back. Really bitter tastes hit the back of your tongue.
