MCQ on Digestion in Human (Class XI)

Human Digestion

MCQ ON HUMAN DIGESTION

This quiz contains 20 multiple choice questions on digestion of food in human. Choose the most appropriate answers for the questions. Good Luck!

 

1. Thecodont is
   1.   Embedment of teeth in the socket of jaw bone
   2.   Presence of four different teeth viz. incisors (I), canine (C), premolars (PM) and molars (M)
   3.   Replacement of temporary milk or deciduous teeth by a set of permanent or adult teeth
   4.   Both A and C
   5.   
2. Dental formula for arrangement of teeth in each half of the upper and lower jaw is
   1.   1223/1223
   2.   2123/2123
   3.   2121/2121
   4.   2231/2231
3. The tongue is a freely movable muscular organ attached to the floor of the oral cavity by
   1.   Mandible
   2.   papillae
   3.   frenulum
   4.   Both A and C
4. The three pairs of salivary glands producing saliva are
   1.   Parotids, Sub-mandibular and sub-linguals
   2.   Parotids, Sub-mendelian and sub-mucosal
   3.   Both A and B
   4.   All of these
5. Duct from gall bladder connecting common bile duct is
   1.   Cystic duct
   2.   Cystolic duct
   3.   Both A and B
   4.   None of these
6. Hepato pancreatic duct is ended with a sphincter called
   1.   Gastrooesophageal phincter
   2.   Sphincter of oddi
   3.   Hepatic sphincter
   4.   Both B and C
7. The structural and functional units of liver containing hepatic cells arranged in the form of cords is termed
   1.   Hepatic duct
   2.   Hepatic lobules
   3.   Hepatic lobes
   4.   Both B and C
8. Pancreas is an exocrine gland because
   1.   Pancreas secretes an alkaline pancreatic juice containing enzymes
   2.   The endocrine portion of pancreas secretes hormones, insulin and glucagon.
   3.   Both A and B
   4.   All of these
9. Two major functions performed by buccal cavity are
   1.   Secretion of saliva and facilitation of swallowing
   2.   Mastication of food and
      facilitation of swallowing
   3.   Helps in digestion of starch and maltose
   4.   Both A and B
10. Mucus in saliva is responsible for
    1.   Swallowing bolus.
    2.   Lubricating and adhering the masticated food particles into a bolus.
    3.   Deglutition
    4.   Protecting
11. Successive waves of muscular contractions of oesophagus while bolus passes through it is called
    1.   stalsis
    2.   Periodic stalsis
    3.   Peristalsis
    4.   Both B and C
12. The saliva secreted into the oral cavity contains
    1.   Electrolytes, salivary amylase and lysozyme
    2.   Electrolytes, amylase and proteolytic enzymes
    3.   Maltose, starch and lysozyme
    4.   Both A and B
13. Lysozyme present in saliva has
    1.   Antibacterial property
    2.   Bacterial property
    3.   Enzymatic property
    4.   Both A and C
14. Gastric glands of stomach have three major types of cells namely
    1.   Peptic cell, parietal cell and oxyntic cells
    2.   Mucus neck cells, chief cells and oxyntic cells
    3.   Mucus neck cells, peptic cell and chief cells
    4.   Chief cell, peptic cell and chief cells
15. Proenzyme pepsinogen is activated into pepsin by
    1.   H and Cl
    2.   HCl (pH 6.8)
    3.   HCl (pH 1.8)
    4.   Both B and C
16. Bioconversion of proteins into proteoses and peptones is done by
    1.   Peptase
    2.   Pepsin
    3.   Pepsinogen
    4.   Both B and C
17. Excoriation of mucosal epithelium by the highly concentrated HCl (1.8) is prevented by
    1.   Mucosal layer of stomach
    2.   Mucus and bicarbonates present in gastric juice
    3.   Water present in stomach
    4.   All of these
18. A proteolytic enzyme found in gastric juice of infants which helps in the digestion of milk proteins is
    1.   Pepsin
    2.   Rennin
    3.   Reninogen
    4.   Both B and C
19. Bioconversion of inactive trypsinogen into brypsin done by
    1.   Intestinal juice
    2.   Enterokinase
    3.   HCl
    4.   H and Cl
20. The function of Bile juice is to
    1.   help in emulsification of saturated fats into unsaturated fat
    2.   Activates lipases and emulsify fats
    3.   Both A and B
    4.   All of these