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 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 (t) liquid B, and (it) 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) Small intestine (A).
(b) Bile (B) is a alkaline fluid which is stored in the gall bladder (C).
(c) Pancreatic juice contains three digestive enzymes: Pancreatic amylase (D), Trypsin (E) and Lipase (F).
(d) The inner wall of small intestine (A) has millions of finger-like projections called Villi (G).
(e) (i) The undigested food passes from the small intestine (A) into a wide tube called Large intestine (H).
(ii) The last part of large intestine is Rectum (I).
(iii) The opening by which undigested food is passed out is Anus (J).
(iv) The process by which undigested food is thrown out from the body is Egestion (K).