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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 secretions 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 form undigested food. The last part of tube H called I stores this undigested food (or waste) foe some time. The indigested food is then passed out through opening J as faeces in the process known as K.(a) Name the organ A.(b) Name (i) liquid B, and (iii) 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.
(a) organ A: Small intestine.
(b) (i) Liquid B: bile juice
(ii) organ C: gall bladder.
(c) The digestive enzymes D: amylase
E: trypsin
F: lipase
(d) The projections G are villi that are present on the inner wall of the Small intestine (organ A).
(e) (i) Tube H: large intestine
(ii) part I: rectum
(iii) opening J: anus
(iv) the process K: egestion or defecation.
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