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Question
Define the following term:
Egestion
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Solution
Egestion — The process of removal of the undigested food from the body is defined as egestion.
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RELATED QUESTIONS
Label the following figure of the digestive system.
A part of the human digestive system
The process of digestion of food in humans begins in:
(a) stomach
(b) food pipe
(c) mouth
(d) small intestine
Where are proteins first digested in the alimentary canal?
(a) small intestine
(b) oesophagus
(c) mouth
(d) stomach
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is:
(a) pepsin
(b) mucus
(c) saliva
(d) bile
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.
Why is the small intestine the most important organ of the digestive system?
How is the small intestine best suited for the digestion and absorption of food?
Find the odd one out. Give reasons for your choice
Describe the following: Emulsification
Choose the odd one:
