Emulsification of fat is carried out by:

(1) Bile pigments

(2) Bile salts

(3) HCl

(4) Pancreatic juice

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Aminopeptidase, a digestive enzyme produces:

(1) Tripeptidases

(2) Smaller peptides

(3) Peptones

(4) Amino acids

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Enterokinase / enteropeptidase takes part in conversion of:

(1) Pepsinogen to pepsin

(2) Trypsinogen to trypsin

(3) Protein into polypeptides

(4) Caseinogen into casein

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Optimum pH for enzyme trypsin is:

(1) 5.9

(2) 4.6

(3) 8.5

(4) 7.0

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The intestinal mucosal epithelium has goblet cells which secretes:

(1) Digestive enzymes

(2) Intestinal digestive enzymes

(3) Mucus

(4) Succus intericus

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The secretion of the brush border cells along with secretions of goblet cells of present in mucosa of small intestine constitutes:

(1) Chyme

(2) Chyle

(3) Succus intericus

(4) Interstitial fluid

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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

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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

 

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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

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Glucose and amino acids are absorbed in the intestine by:

(1) Active transport

(2) Passive transport

(3) Selective absorption

(4) Osmosis

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