What is taste?

 "Taste is when you determine the flavor and texture of food. All over your tongue, there are little bumps called taste buds. There are four different types of taste buds. You can taste sweets in the front of your tongue and sour taste at both sides of your tongue. At the back, you taste bitter things. All though you can taste salty things all over your tongue the taste buds are located on the low sides of your tongue." (www.http://freda.auyeung.net/5senses/taste.htm)