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प्रश्न
The process of digestion starts from the ______.
विकल्प
stomach
mouth
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उत्तर
The process of digestion starts from the mouth.
Explanation:
The digestive system consists of the alimentary canal and digestive glands. The total length of alimentary canal is about 9 metres. Its main parts are the · mouth, ·pharynx, oesophagus, stomach, small intestine, large intestine, rectum and anus. The salivary glands, liver and pancreas are the · digestive glands connected to the alimentary canal.
संबंधित प्रश्न
Digestion of starch starts in the stomach.
Name any four life processes in living things.
Name the main organs of the human digestive system. Also name the associated glands.
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.
(a) Name the organ A.
(b) Name (i) liquid B, and (ii) organ C.
(c) What are the digestive enzymes D, E and F?
(d) Name the projections G present on the inner wall of organ A.
(e) Name (i) tube H (ii) part I (iii) opening J, and (iv) process K.
How is thorough chewing of food helpful in digestion?
List two different functions performed by the pancreas in our body.
State whether the following statement is True or False.
Wisdom tooth appears at the age of 5-6 years when the child starts going to school.
Rewrite the following parts of the human alimentary canal in their correct sequence Stomach, Oesophagus, Large instestine, Small intestine, Pharynx.
Fill in the blank.
Saliva contains salivary amylase which changes starch to _____.
Write true or false for the below statement. Rewrite the false statements correctly.
Digestion of food in the intestine takes place in the presence of dilute hydrochloric acid.
Find the odd one out. Give reasons for your choice
Define with examples: Autotrophs
State whether the following statements are True or false: Enteropeptidase activates pepsinogen into pepsin.
What’s the solution?
A person has fainted, and a crowd of people has surrounded him.
Write down the explanation.
Explain why human dentition is considered as thecodont, diphydont and heterodont.
All are functions of the liver, EXCEPT
The process of digestion is completed by:
Name the organism which lives in the digestive system of human ______.
The enzymes present in the saliva convert ______.
Mucosa forms __a__ in stomach and ___b___ in intestine respectively.
