Question

Determine the correct sequence of the process of nutrition in a human being.
$A.$ Mastication of food and formation of bolus
$B.$ Production of chyme
$C.$ Deglutition
$D.$ Passage of unabsorbed, undigested substances to the caecum
$E.$ Digestion in the most coiled part of alimentary canal

• A. $A, \, C, \, E, \, B, \, D$
• B. $A, \, E, \, C, \, B, \, D$
• C. $A, \, C, \, B, \, E, \, D$
• D. $A, \, B, \, C, \, E, \, D$

Answer 1

Answer: (C)

The steps involved in process of digestion of food are as follows:
$1.$ Mastication of food in the mouth by teeth and formation of bolus. $2.$ Deglutition i.e. passage of the bolus through the oesophagus with the help of peristaltic movements of oesophagus. $3.$ Entry of food into the stomach. Grinding of food by the muscular wall of stomach and its mixing with gastric juices leading to formation of chyme. $4.$ Passage of food and digestion of food in the small intestine which is the most coiled part of alimentary canal. $5.$ Passage of unabsorbed and undigested food in the caecum of the large intestine.