Three secretions meeting the food in small intestine are:

(1) Bile, gastric juice and saliva

(2) Bile, pancreatic juice and gastric juice

(3) Pancreatic juice, intestinal juice and gastric juice

(4) Bile, pancreatic juice and succus entericus

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Trypsinogen, chymotrypsinogen, procarboxypeptidase, amylase, lipase and nuclease enzymes are found in:

(1) Pancreatic juice

(2) Succus entericus / intestinal juice

(3) Gastric juice

(4) Bile and gastric juice

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Bile produced in the liver is associated with which of the following?

(1) Emulsification of fats into tiny globules (micelles) in the small intestine by bile salts

(2) Digestive action of pancreatic amylase

(3) Emulsification of fats into tiny globules in the stomach

(4) Digestion of proteins into amino acids

 

 

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Waves of muscle contraction that move the intestinal content are:

(1) Caused by-contraction of skeletal muscle

(2) Regulated by liver secretions

(3) Called peristalsis

(4) Voluntary

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Bile aids in digestion and absorption of fats because it contains:

(1) Lipase

(2) Bile salts

(3) Bile pigments

(4) All of the above

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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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