Q. No.Protection of intestinal Mucosa from HCl is carried out by-
(1) Alkaline secretion of pancreas
(2) Sub-mucosal glands of duodenum
(3) Mucus from intestinal goblet cells
(4) All of these
(1) Alkaline secretion of pancreas
(2) Sub-mucosal glands of duodenum
(3) Mucus from intestinal goblet cells
(4) All of these
Proteolytic enzyme of pancreas is not
(1) Trypsin
(2) Chymotrypsin
(3) Carboxypeptidase
(4) Protopeptidase
Carbohydrates in the chyme are hydrolysed by pancreatic amylase and results into
(1) Disaccharides
(2) Maltose
(3) Lactose
(4) Sucrose
The succus entericus does not act on
(1) Dipeptides
(2) Nucleotides
(3) Nucleosides
(4) Peptones
Final steps of digestion occur -
(1) Occurs very close to mucosal epithelium of intestine
(2) Occurs in lumen of intestine
(3) Occurs inside mucosal epithelia of intestine
(4) Occurs in the rugae if intestine
Nucleosides are acted upon by nucleosidases and give rise to
(1) Sugars and bases
(2) Sugars, bases and phosphates
(3) Sugars and phosphates
(4) Bases and phosphates
Final digestion occurs in….1..and absorption occurs in …2… while undigested passes to ..3..
a. 1. Duodenum and Jejunum; 2.ileum; 3. Large intestine
b. 1. Duodenum; 2. Jejunum and ileum; 3. Large intestine
c. 1. Duodenum and ileum; 2. Caecum; 3. Rectum
d. 1. Duodenum and Jejunum; 2. Ileum; 3. Rectum
Large intestine does not
(1) Secrete mucus
(2) Plays significant role in digestion
(3) Helps in easy passage of waste
(4) Get undigested and unabsorbed substances
Which of the following is wrong with respect to digestion?
(1) The sight, smell or presence of food in the oral cavity stimulates secretion of saliva
(2) Hormonal signals cannot stimulate gastric and intestinal secretions.
(3) The muscular activities of different parts of the alimentary canal can be moderated by neural mechanisms.
(4) Hormones control the secretion of digestive juices.
Which of the following end product of digestion is absorbed by means of active, passive and facilitated diffusion?
(1) Glucose
(2) Water
(3) Fructose
(4) Galactose
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