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प्रश्न
Fill in the blank.
The human teeth appear in two sets, the first set is called primary which consists of only _______ teeth
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उत्तर
The human teeth appear in two sets, the first set is called primary which consists of only twenty teeth
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संबंधित प्रश्न
Iodine turns blue-black on reacting with ______.
Name the substance on which the following enzymes act in the human digestive system:
Trypsin
| 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. |
- What are (i) gland A, (ii) substance B, and (iii) enzyme C?
- Name the tube D.
- What is the movement E known as?
- What are (i) F, (ii) G, and (iii) H?
Study the following dental formula and then answer the question that follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
Name an animal possessing such a dentition.
Name the juice secreted by the liver.
Fill in the blanks.
______ and ______ help in digestion but food does not pass through them.
Correct the spellings: Pespin
Observe the diagram of Human digestive system.
Match the labeling referred in column I and correlate with the function in column II.
| Column I | Column II | |
| i. | a. | The length of this depends on food the organism eats. |
| ii. | b. | Initial phase of starch digestion |
| iii. | c. | Increase the efficiency of lipase enzyme action |
| iv. | d. | This is the site of the complete digestion of carbohydrates, proteins and fats. |
In which part of the alimentary canal food is finally digested?
Digestion of food starts in ______ and gets completed in ______.
