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प्रश्न
How is the small intestine best suited for the digestion and absorption of food?
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उत्तर
The small intestine’s inner lining contains a large number of tiny finger-like projections called villi. The villi greatly increase the inner surface area for the absorption of digested food.
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संबंधित प्रश्न
Which of the following are the correct functions of two components of pancreatic juice trypsin and lipase?
| 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.
What is roughage? Give two examples.
Put a tick (✓) against the most appropriate alternative in the following statement.
Saliva converts starch into:
Fill in the blank.
In an adult human, there are a total of ___ teeth.
State whether the following statements are True or false: Na+ is absorbed in intestine by sodium pump.
Describe the process of digestion in human beings.
Name the organs of the digestive system
The exit of unabsorbed food material is regulated by ____________.
Identify the option that indicates the correct enzyme that is secreted in location A, B and C.
