Question 1

The __________ gland is an extrinsic salivary gland,whereas the __________ gland is an intrinsic salivary gland.

Accepted Answer

A)   lingual;labial
B)   submandibular;lingual
C)   submandibular;sublingual
D)   sublingual;parotid
E)   lingual;sublingualF) A) and B)
G) B) and E)

Question 2

Contact digestion takes place in/at the __________.

Accepted Answer

A)   gastric pits
B)   surface of the gastric mucosa
C)   intestinal crypts
D)   brush border of the small intestine
E)   cytoplasm in the cells of the small intestineF) A) and B)
G) A) and D)

Question 3

The large intestine absorbs water,fats,and salts.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following occurs in response to chemical irritants or sensory stimuli?

Accepted Answer

A)   vomiting
B)   mechanical digestion
C)   segmentation
D)   mass movementE) A) and B)
F) A) and C) A

Question 5

Lecithin prepares fats for hydrolysis by forming __________.

Accepted Answer

A)   triglycerides,fatty acids,and glycerol
B)   low density lipoproteins (LDL) 
C)   chylomicrons
D)   emulsification droplets
E)   micellesF) A) and B)
G) C) and D)

Question 6

Defecation is stimulated by __________.

Accepted Answer

A)   the chemical composition of the feces
B)   bacterial flora in the feces
C)   water content of the feces
D)   lipid content in the feces
E)   stretching of the rectumF) D) and E)
G) A) and B)

Question 7

A hepatic triad consists of __________.

Accepted Answer

A)   the right,left,and common hepatic ducts
B)   the common hepatic duct,cystic duct,and bile duct
C)   the hepatic portal vein and two hepatic ducts
D)   a bile ductule,a branch of the hepatic artery,and a branch of the hepatic portal vein
E)   a central vein,a hepatic lobule,and a hepatic sinusoidF) A) and B)
G) B) and D)

Question 8

Which of the following is not a component of the pancreatic juice?

Accepted Answer

A)   Trypsinogen
B)   Chymotrypsinogen
C)   Deoxyribonuclease
D)   Sodium bicarbonate
E)   EnteropeptidaseF) C) and D)
G) B) and D)

Question 9

Bacteria constitute about __________% of the dry weight of the feces.

Accepted Answer

A)   2
B)   14
C)   30
D)   55
E)   80F) A) and B)
G) B) and E)

Question 10

Which of the following bile components contributes to digestion?

Accepted Answer

A)   Bile salts
B)   Bilirubin
C)   Bile pigments
D)   Minerals
E)   CholesterolF) B) and E)
G) A) and D)

Question 11

Which of the following is the correct list of tooth anatomy from the most superficial to the deepest?

Accepted Answer

A)   Cementum,root canal,enamel
B)   Enamel,root canal,dentin
C)   Dentin,enamel,cementum
D)   Enamel,dentin,pulp
E)   Crown,enamel,dentinF) A) and E)
G) C) and D)

Question 12

Odor,sight,and taste stimulate salivatory nuclei in the cerebral cortex.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is not a function of gastric hydrochloric acid (HCl) ?

Accepted Answer

A)   Activate pepsinogen to pepsin
B)   Activate lingual lipase
C)   Emulsify lipids
D)   Destroy ingested pathogens
E)   Convert Fe3+ to Fe2+F) C) and D)
G) All of the above C

Question 14

The physiological process that moves a nutrient from the outside of the body to the inside is called __________.

Accepted Answer

A)   ingestion
B)   compaction
C)   digestion
D)   absorption
E)   secretionF) A) and E)
G) B) and E)

Question 15

Most fat is digested by pancreatic lipase.

Accepted Answer

A) True 
 B)False

Question 16

The __________ of the small intestine is/are similar to the __________ of the stomach.

Accepted Answer

A)   villi;pyloric glands
B)   rugae;aggregated lymphoid nodules
C)   intestinal crypts;gastric pits
D)   goblet cells;parietal cells
E)   pyloric sphincter;ileocecal valveF) B) and E)
G) C) and D)

Question 17

An example of chemical digestion is the break down of __________ into __________.

Accepted Answer

A)   proteins;nucleotides
B)   amino acids;proteins
C)   polysaccharides;amino acids
D)   nucleic acids;nucleotides
E)   fatty acids;cholesterolF) A) and D)
G) A) and C)

Question 18

Which of the following is the proper sequence by which proteins are digested by different enzymes?

Accepted Answer

A)   Pepsin,trypsin,carboxypeptidase,dipeptidase
B)   Pepsin,trypsin,dipeptidase,carboxypeptidase
C)   Trypsin,pepsin,carboxypeptidase,dipeptidase
D)   Trypsin,pepsin,dipeptidase,carboxypeptidase
E)   Dipeptidase,carboxypeptidase,pepsin,trypsinF) A) and B)
G) A) and C)

Question 19

Which of the following enzymes functions at the lowest pH?

Accepted Answer

A)   Salivary amylase
B)   Pancreatic amylase
C)   Pepsin
D)   Trypsin
E)   DipeptidaseF) None of the above
G) C) and E)

Question 20

Enamel is found in the crown of a tooth,whereas dentin is part of both the crown and the root.

Accepted Answer

A) True 
 B)False  True

Exam 25: The Digestive System

The __________ gland is an extrinsic salivary gland,whereas the __________ gland is an intrinsic salivary gland.

Correct AnswerverifiedShow Answer

Contact digestion takes place in/at the __________.

Correct AnswerverifiedShow Answer

The large intestine absorbs water,fats,and salts.

Correct AnswerverifiedShow Answer

Which of the following occurs in response to chemical irritants or sensory stimuli?

Correct AnswerverifiedA

Lecithin prepares fats for hydrolysis by forming __________.

Correct AnswerverifiedShow Answer

Defecation is stimulated by __________.

Correct AnswerverifiedShow Answer

A hepatic triad consists of __________.

Correct AnswerverifiedShow Answer

Which of the following is not a component of the pancreatic juice?

Correct AnswerverifiedShow Answer

Bacteria constitute about __________% of the dry weight of the feces.

Correct AnswerverifiedShow Answer

Which of the following bile components contributes to digestion?

Correct AnswerverifiedShow Answer

Which of the following is the correct list of tooth anatomy from the most superficial to the deepest?

Correct AnswerverifiedShow Answer

Odor,sight,and taste stimulate salivatory nuclei in the cerebral cortex.

Correct AnswerverifiedShow Answer

Which of the following is not a function of gastric hydrochloric acid (HCl) ?

Correct AnswerverifiedC

The physiological process that moves a nutrient from the outside of the body to the inside is called __________.

Correct AnswerverifiedShow Answer

Most fat is digested by pancreatic lipase.

Correct AnswerverifiedShow Answer

The __________ of the small intestine is/are similar to the __________ of the stomach.

Correct AnswerverifiedShow Answer

An example of chemical digestion is the break down of __________ into __________.

Correct AnswerverifiedShow Answer

Which of the following is the proper sequence by which proteins are digested by different enzymes?

Correct AnswerverifiedShow Answer

Which of the following enzymes functions at the lowest pH?

Correct AnswerverifiedShow Answer

Enamel is found in the crown of a tooth,whereas dentin is part of both the crown and the root.

Correct AnswerverifiedTrue

The gland is an extrinsic salivary gland,whereas the gland is an intrinsic salivary gland.

Correct Answer
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C

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The of the small intestine is/are similar to the of the stomach.

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An example of chemical digestion is the break down of into .

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True