Multiple choice question on Digestion

1)  Maltase a carbohydrates digesting enzyme secreted from -----, the site of release -----, & have …………pH level

a)     Small intestine, small intestine, basic

b)    Pancreas, small intestine, basic

c)     Pancreas, stomach, acidic

d)    Pancreas, stomach, basic

2)  Enyme for nucleic acid digestion is secreted from pancreas, release into ----- & have ----- pH level

a)     Stomach, acidic

b)    Small intestine, acidic

c)     Stomach, basic

d)    Small intestine, basic

3)  Trypsin cleaves peptide chains mainly at the carboxyl side of the amino acids lysine or arginine, except when either is followed by -----

a)     Leucine

b)    Proline

c)     Cysteine

d)    All

4)  Chymotrypsin preferentially cleaves peptide amide bond, where tyrosine, tryptophan, phenylalanine present in protein, chymotrypsin also hydrolyzes other amide bonds in peptides at slower rate, particularly those containing -----

a)     Leucine, methionine

b)    Proline, cysteine

c)     Threonine

d)    None

5)  The 2 protease of the pancreas are trypsinogen & chymotrypsinogen, are inactivated form of  trypsin & chymptrypsin, once released in the intestine, the enzyme ----- present in-----  activates trypsinogen by cleaving it to form trypsin

a)     Enterokinase, intestinal mucosa

b)    Enterokinase, pancreas

c)     Cholecystokinin, intestine

d)    None

6)  Islets of langerhance contain ----- beta cells, that producing -----

a)     50-80%, insulin

b)    15-20%, glucagon

c)     3-10%, somatostanin

d)    None

7)  The ----- among the few internal human organs, capable of natural regeneration of lost tissue: as little as 25% of remaining, regenerate into a whole -----

a)     Lung

b)    Spleen

c)     Liver

d)    None

8)  In the 1^st trimester fetus, the ----- is the main site of RBC production. By 32^nd weeks of gestation, the ----- has almost completely taken over that task

a)     Liver, spleen

b)    Spleen, bone marrow

c)     Liver, bone marrow

d)    None

9)  Tracheoesophageal fistula is a congenital condition, in which there is a connection between the -----

a)     Esophagus &wind pipe

b)    Pharynx & larynx

c)     Esophagus & stomach

d)    All

10)              Esophageal atresia is a congenital condition, in which the esophagus of new born does not connect to the stomach &

a)     Connected with lever

b)    Comes to a dead end right before the stomach

c)     Connected to lung

d)    None

Answer: 1-a, 2-b, 3-b, 4-a, 5-a, 6-a, 7-c, 8-c, 9-a, 10-b

Contributed by : Nargis K.