Q. No.Enterokinase / enteropeptidase takes part in conversion of:
(1) Pepsinogen to pepsin
(2) Trypsinogen to trypsin
(3) Protein into polypeptides
(4) Caseinogen into casein
The intestinal mucosal epithelium has goblet cells which secretes:
(1) Digestive enzymes
(2) Intestinal digestive enzymes
(3) Mucus
(4) Succus intericus
The secretion of the brush border cells present in mucosa of small intestine along with secretions of goblet cells constitutes:
(1) Chyme
(2) Chyle
(3) Succus intericus
(4) Interstitial fluid
Which of the following statements is false?
(1) The breakdown of most of biomacromolecules occurs in duodenum
(2) Simple substances (digested foods) are absorbed in the jejunum and ileum
(3) Very significant digestive activity occurs in large intestine
(4) Undigested and unabsorbed substances are passed on to the large intestine
The undigested substance (faeces) enter into the ________ of large intestine through ________ valve which prevents backflow of faecal matter:
(1) Caecum, ileo-caecal
(2) Colon, ileo-colon valve
(3) Rectum, Recto-colonic
(4) Colon, pyloric valve
In addition to neural control, hormones also influence the:
(1) Gastric secretions
(2) Intestinal secretions
(3) Muscular activities of different parts of alimentary canal
(4) All are correct
Glucose and amino acids are absorbed in the intestine by:
(1) Active transport
(2) Passive transport
(3) Selective absorption
(4) Osmosis
Fructose and some amino acids are absorbed by:
(1) Active transport
(2) Diffusion
(3) Facilitated transport
(4) Osmosis
Which of the following statement is wrong about chylomicrons?
I. Chylomicrons are produced in the epithelial cells of small intestinal
II. It contains triglycerides, cholesterol and phospholipids
III. It is protein coated small vesicles
IV. Chylomicrons released from the epithelial cell into lacteals
(1) I and IV
(2) II and III
(3) I, II, III and IV
(4) None of the above
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