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Salivary Glands

What substanc...

Question

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

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Solution

Saliva which is secreted by the salivary glands which gets mixed with food during mastication or chewing.

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Q. What substance is mixed with food in the mouth during chewing?

During the process of eating we masticate and mix saliva into the food as well. Masticating and salivating are ______&______ processes.

Q. When a person puts food in his mouth, then teeth cut it into small pieces, chew and grind it. The glands A in the mouth secrete a substance B which is mixed with the food by tongue. The substance B contains an enzyme C which starts the digestion of food in the mouth. The slightly digested food from the mouth goes down a tube D. The special type of movements E in the walls of tube D push the food into stomach for further digestion. The stomach wall secretes gastric juice containing three substance F, G and H. One of the functions of F is to kill bacteria which may enter the stomach with food. The substance G protects the inside layer of stomach from the damaging effect of substance F whereas substance H is an enzyme for digestion. The partially digested food then enters into small intestine for further digestion.
(a) What is (i) gland A (ii) substance B, and (iii) enzyme C?
(b) Name the tube D.
(c) What is the movement E known as?
(d) What are (i) F (ii) G, and (iii) H?

The process of cutting of food, crushing it by our teeth in the mouth and mixing it with saliva to make it wet and slippery is known as___.

Q. (A) Teeth and tongue with help of saliva masticate and mixed up the food thoroughly.
(B) Mucus in saliva helps in lubricating and adhering the masticated food particles into chyme
(C) Mucus and bicarbonate present in gastric juice plays an important role in lubrication and protection from excoriation by highly concentrated

H C L

(D) The function of bile is emulsification of fat and activation of lipase
How many sentences given above are true?

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