* The Sense Of Taste *

1.A tongue is a taste organ

2.A tongue is sensitive to taste

      a. sweet 

      b. salty 

      c. sour 

      d. bitter

3. The tongue have 4 types of taste receptor:

      a. sweet receptor (cake)

      b. salt receptor    (table salt)

      c. sour receptor   (tomato)

      d. bitter receptor  (coffee)

Detection of taste by taste receptors: 

Food/drink dissolve in saliva

Chemical stimulates taste receptor (taste buds)

Taste receptor send message to brain through nerve

Exercise:

1.How do we taste food and drink?

2. Name the 4 basic senses that the tongue can detect?

3. Why can’t you taste dry food?

4. Why does food seem less tasty when you pinches

   your nose while eating?