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Question
Correct the spellings: Disegion
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Solution
Digestion
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| 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 and enzyme for digestion. The partially digested food then enters into small intestine for further digestion. |
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- Name the tube D.
- What is the movement E known as?
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Write true or false for the below statement. Rewrite the false statements correctly.
The pancreas secretes bile juice
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Parotid salivary glands occur
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In which part of the alimentary canal food is finally digested?
______ is a major organ for the digestion of food materials.
Cellulose-rich food substances are good source of roughage in human beings because ______.
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Give two reasons, why bile juice is considered to be an important secretion of liver in the process of digestion?
