Solutions: (a)- (iii), (b)-(iv), (c)-(i), (d)-(ii), (vii), (e)-(v), (f)-(vi)
Ans: (a) Salivary : (iii) Saliva secretion
In the mouth, salivary glands secrete the saliva which breaks down the starch into sugars.
(b) Stomach : (iv) Acid release
The inner liningof the stomach secretes acid which kills the bacteria that enter along with the food and makes the medium in the stomach acidic.
(c) Liver : (i) Bile juice secretion
Liver is the largest gland of the body which secretes the bile juice. Bile plays an important role in the digestion of fats.
(d) Rectum : (ii) Storage of Undigested food
Rectum is a part of large intestine. The remaining waste passes into the rectum and remains there as semi-solid faeces.
(e) Small intestine : (v) Digestion is completed
The complete digestion of food takes place in the small intestine. Here, carbohydrates break into simple sugar, proteins into the amino acids and fats into fatty acid and glycerol.
(f) Large intestine : (vi) Absorption of water
Large intestine is the 1.5 meter in length. Its function is to absorb water and some salts from the undigested food material.
