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प्रश्न
What is the length of the alimentary canal?
विकल्प
3-5 m
5-6 m
9-11 m
6-9 m
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उत्तर
6-9 m
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संबंधित प्रश्न
What is the role of saliva in the digestion of food?
The process of digestion in humans is completed in ______.
| 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.
Write one function each of the following enzymes:
Lipase
Put a tick (✓) against the most appropriate alternative in the following statement.
The teeth which help in tearing the food are the:
The teeth called canines are a total of four in number on the sides of ______.
Identify and name the four type of teeth shown below and give their functions
Food are classified into three groups on the basis of the function they perform in our body. Name the three categories, and briefly give their functions. Also give their two sources each.
Write true or false for the below statement. Rewrite the false statements correctly.
The wave-like motion of stomach muscles to push the food is called peristalsis.
Mark the following statement as True or False. If false, write the correct statement.
All heterotrophs have a similar basic process of nutrition.
