Optimum pH of saliva action is:

(1) 6.8

(2) 8.6

(3) 7

(4) 9.5

Subtopic:  Digestive Secretions: Saliva |
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Pepsinogen is activated by:

(1) Trypsin

(2) Chymotrypsin

(3) HCl

(4) Na+

Subtopic:  Gastric Secretions |
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Pepsin converts:

(1) Protein into amino acid

(2) Fat into fatty acid

(3) Peptones into amino acid

(4) Proteins into proteoses and peptones (peptides)

Subtopic:  Gastric Secretions |
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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

Subtopic:  Intestinal Secretions |
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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

Subtopic:  Pancreatic Secretions |
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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

 

 

Subtopic:  Bile |
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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

Subtopic:  Peristalsis: Gland in Alimentary Canal |
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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

Subtopic:  Bile |
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Emulsification of fat is carried out by:

(1) Bile pigments

(2) Bile salts

(3) HCl

(4) Pancreatic juice

Subtopic:  Bile |
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Aminopeptidase, a digestive enzyme produces:

(1) Tripeptidases

(2) Smaller peptides

(3) Peptones

(4) Amino acids

Subtopic:  Pancreatic Secretions |
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