Q31 of 367 Page 23

What moves the food in the digestive organs?

Peristaltic movement is the contraction and relaxation of the muscles of the digestive tract to move the food through the digestive system.


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29

Name the enzyme present in human saliva. What type of food material is digested by this enzyme?

 30

Which of the organs perform the following functions in humans?

(i) Absorption of food


(ii) Absorption of water

 32

What is the other name of food pipe?

 33

What substance is mixed with food in the mouth during chewing by the teeth?