Question 1

As a protein is broken down into smaller and smaller fragments,each fragment ultimately requires splitting of the last peptide bond within it.The breaking of the bond between those last two amino acids is catalyzed by the enzyme

Accepted Answer

A)  pepsin.
B)  chymotrypsin.
C)  dipeptidase.
D)  trypsin.
E)  glucoamylase.F) A) and B)
G) A) and C)

Question 2

Which of the following is the correct sequence of regions of the small intestine,from beginning to end

Accepted Answer

A)  Ileum - duodenum - jejunum
B)  Jejunum - duodenum - ileum
C)  Duodenum - ileum - jejunum
D)  Ileum - jejunum - duodenum
E)  Duodenum - jejunum - ileumF) A) and C)
G) C) and D)

Question 3

Pancreatic juice is secreted by the exocrine pancreatic acini.

Accepted Answer

A) True 
 B)False

Question 4

The gallbladder is part of the gastrointestinal tract.

Accepted Answer

A) True 
 B)False

Question 5

Which region of the digestive tract moves material by peristalsis,haustral churning,and mass movement

Accepted Answer

A)  Large intestine
B)  Small intestine
C)  Stomach
D)  Esophagus
E)  PharynxF) C) and D)
G) C) and E)

Question 6

The submandibular ducts open into the floor of the oral cavity,lateral to the lingual frenulum.

Accepted Answer

A) True 
 B)False

Question 7

Which is not a function of the digestive system

Accepted Answer

A)  Absorption
B)  Ingestion
C)  Secretion
D)  Micturition
E)  EliminationF) C) and D)
G) C) and E)

Question 8

The buccal,lingual,and labial salivary glands are __________ salivary glands.

Accepted Answer

A)  extrinsic
B)  intrinsicC) A) and B)
D) undefined

Question 9

-This figure shows an intestinal villus.What specific layer does number 4 indicate

Accepted Answer

A)  Circular layer of muscularis
B)  Longitudinal layer of muscularis
C)  Lamina propria
D)  Basement membrane
E)  Muscularis mucosaeF) A) and E)
G) None of the above

Question 10

Which is not found in the wall of the large intestine

Accepted Answer

A)  Goblet cells
B)  Simple columnar epithelium
C)  Lymphatic nodules
D)  Villi
E)  Intestinal glandsF) A) and C)
G) A) and D)

Question 11

The pharyngeal phase of swallowing is a voluntary process that is controlled by the cerebral cortex.

Accepted Answer

A) True 
 B)False

Question 12

Of the five types of secretory cells in the gastric glands,which ones secrete pepsinogen

Accepted Answer

A)  Chief cells
B)  Parietal cells
C)  Surface mucous cells
D)  Mucous neck cells
E)  Enteroendocrine cellsF) B) and D)
G) B) and E)

Question 13

Mastication is a process that facilitates

Accepted Answer

A)  propulsion of materials through the intestine,and it involves simultaneous secretion of enzymes.
B)  mixing of food within the stomach,and it occurs with simultaneous hormone secretion there.
C)  swallowing of food,and it increases the surface area of the food for exposure to enzymes.
D)  absorption of nutrients into the bloodstream,and it involves carrier proteins in the epithelium.E) B) and C)
F) A) and D)

Question 14

Bile salts are

Accepted Answer

A)  amphipathic.
B)  completely hydrophilic.
C)  completely hydrophobic.D) B) and C)
E) A) and C)

Question 15

The term "retroperitoneal" may be used to describe the location of certain abdominal organs.This means that such organs are located

Accepted Answer

A)  between the visceral and parietal layers of the peritoneum.
B)  posterior to the parietal peritoneum.
C)  in the peritoneal cavity.
D)  between folds of the parietal peritoneum.
E)  deep to the visceral peritoneum.F) A) and E)
G) A) and D)

Question 16

Secretin is a hormone that is secreted by the

Accepted Answer

A)  stomach.
B)  small intestine.
C)  large intestine.
D)  liver.
E)  pancreas.F) C) and D)
G) D) and E)

Question 17

Which is not a fold of peritoneum that forms a mesentery

Accepted Answer

A)  Lesser omentum
B)  Falciform ligament
C)  Mesentery proper
D)  Mesocolon
E)  Intraperitoneal ligamentF) A) and B)
G) B) and E)

Question 18

Lactose intolerant individuals cannot digest the _________ lactose because they lack the enzyme _________.

Accepted Answer

A)  polysaccharide;maltase
B)  disaccharide;lactase
C)  monosaccharide;dextrolactase
D)  lipid;pancreatic lipase
E)  fatty acid;sucrolactaseF) A) and D)
G) None of the above

Question 19

Duodenal glands (Brunner glands) that secrete a viscous mucus into the small intestine are located in the

Accepted Answer

A)  serosa.
B)  adventitia.
C)  mucosa.
D)  submucosa.
E)  muscularis interna.F) C) and E)
G) B) and D)

Question 20

Digestion of proteins is initiated by the enzyme

Accepted Answer

A)  amylase.
B)  hydrochloric acid.
C)  aminopeptidase.
D)  pepsin.
E)  CCK.F) A) and E)
G) A) and C)

Exam 26: Digestive System

The term "retroperitoneal" may be used to describe the location of certain abdominal organs.This means that such organs are located

Correct AnswerverifiedShow Answer

Which of the following is the correct sequence of regions of the small intestine,from beginning to end

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Which region of the digestive tract moves material by peristalsis,haustral churning,and mass movement

Correct AnswerverifiedShow Answer

Which is not found in the wall of the large intestine

Correct AnswerverifiedShow Answer

Pancreatic juice is secreted by the exocrine pancreatic acini.

Correct AnswerverifiedShow Answer

Of the five types of secretory cells in the gastric glands,which ones secrete pepsinogen

Correct AnswerverifiedShow Answer

Bile salts are

Correct AnswerverifiedShow Answer

The submandibular ducts open into the floor of the oral cavity,lateral to the lingual frenulum.

Correct AnswerverifiedShow Answer

The buccal,lingual,and labial salivary glands are __________ salivary glands.

Correct AnswerverifiedShow Answer

Lactose intolerant individuals cannot digest the _________ lactose because they lack the enzyme _________.

Correct AnswerverifiedShow Answer

Duodenal glands (Brunner glands) that secrete a viscous mucus into the small intestine are located in the

Correct AnswerverifiedShow Answer

Secretin is a hormone that is secreted by the

Correct AnswerverifiedShow Answer

Mastication is a process that facilitates

Correct AnswerverifiedShow Answer

Which is not a function of the digestive system

Correct AnswerverifiedShow Answer

The pharyngeal phase of swallowing is a voluntary process that is controlled by the cerebral cortex.

Correct AnswerverifiedShow Answer

Digestion of proteins is initiated by the enzyme

Correct AnswerverifiedShow Answer

-This figure shows an intestinal villus.What specific layer does number 4 indicate

Correct AnswerverifiedShow Answer

The gallbladder is part of the gastrointestinal tract.

Correct AnswerverifiedShow Answer

As a protein is broken down into smaller and smaller fragments,each fragment ultimately requires splitting of the last peptide bond within it.The breaking of the bond between those last two amino acids is catalyzed by the enzyme

Correct AnswerverifiedShow Answer

Which is not a fold of peritoneum that forms a mesentery

Correct AnswerverifiedShow Answer

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Lactose intolerant individuals cannot digest the _ lactose because they lack the enzyme _.

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