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प्रश्न
Write any two functions of digestive system.
टीपा लिहा
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उत्तर
- Digestive system is involved in the conversion of complex food substances into simple forms.
- Absorption of digested food.
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संबंधित प्रश्न
Pancreas, Gall bladder, Glomerulus, Liver
What is the function of enzymes in the human digestive system?
What is trypsin?
| The partially digested food coming from the stomach of a person enters a long and narrow organ A in his body. The organ A receives the secretion of two glands : liver and pancreas. Liver secretes a greenish-yellow liquid B which is normally stored in the organ C. Pancreas secretes pancreatic juice which contains three digestive enzymes D, E and F. The intestinal juice completes the process of digestion of food. The inner wall of organ A has millions of tiny finger-like projections G which help in the rapid absorption of digested food into blood stream. The undigested part of food then passes into wider tube H which absorbs most of the water from undigested food. The last part of tube H called I stores this undigested food (or waste) for some time. The undigested food is then passed out though opening J as faeces in the process known as K. |
- Name the organ A.
- Name (i) liquid B, and (ii) organ C.
- What are the digestive enzymes D, E and F?
- Name the projections G present on the inner wall of organ A.
- Name (i) tube H (ii) part I (iii) opening J, and (iv) process K.
Define the following term :
Pylorus
Fill in the blank.
The _______ are used for tearing the food.
What is the main function of bile?
Observe the diagram given alongside and answer the following:
- Name the parts numbered 1-8.
- Which parts shown in the diagram are non-living?
- Is the tooth suited for cutting, tearing or grinding?
- What is the function of parts 8 and 7?
- What is the total number of teeth present in adult human beings?
- Write the dental formula of human beings.
In which part of the alimentary canal food is finally digested?
Name the correct substrates for the following enzymes
- Trypsin
- Amylase
- Pepsin
- Lipase
