Question

Draw a diagram of Human tongue and label the areas that show different tastes such as sweet, sour, bitter and salty.

Answer 1

Sweetness- Tip of the tongue
Salty-  Above the Tip, on the sides     
Sour-  On the sides of the tongue above the salt sensing part..   
Bitter-  Middle of the tongue in the inside 

Answer 2

the tastes are marked in tongue