Question 1

When chyme enters the duodenum, ________ is released and stimulates the pancreas to secrete bicarbonates.

Accepted Answer

A)   gastrin
B)   secretin
C)   insulin
D)   cholecystokinin
E)   glucagonF) A) and E)
G) C) and E)

Question 2

Most of the water that enters that digestive tract is removed by the body in urine.

Accepted Answer

A) True 
 B)False

Question 3

Which digestive activity is NOT correctly matched to its location?

Accepted Answer

A)   Killing microorganisms with lysozyme - stomach
B)   Digestion of carbohydrates - mouth
C)   Absorption of nutrients - small intestine
D)   Production of mucus - esophagusE) A) and C)
F) None of the above

Question 4

Which layer of the digestive tract is in direct contact with ingested food?

Accepted Answer

A)   Mucosa
B)   Muscularis
C)   Submucosa
D)   SerosaE) None of the above
F) B) and D)

Question 5

Which of the following cell types of the stomach is correctly matched with its function?

Accepted Answer

A)   Mucous cells - produce intrinsic factor
B)   Parietal cells - produce hydrochloric acid
C)   Chief cells - produce mucus
D)   Endocrine cells - produce enzymes
E)   Chief cells - produce hormonesF) A) and E)
G) A) and D)

Question 6

When intestinal chyme is highly concentrated,

Accepted Answer

A)   water moves by osmosis into the lumen of the small intestine.
B)   water moves by osmosis from the intestinal lumen into the blood.
C)   water moves by endocytosis from intestinal lumen into interstitial spaces.
D)   water moves by exocytosis from interstitial spaces into the stomach.
E)   water does not move.F) A) and B)
G) B) and E)

Question 7

Which of the following enzymes digests protein?

Accepted Answer

A)   Bile
B)   Pepsin
C)   Isomaltose
D)   Sucrase
E)   LipaseF) A) and D)
G) A) and C)

Question 8

Pepsinogen

Accepted Answer

A)   is secreted by parietal cells.
B)   is activated by salivary amylase in swallowed food.
C)   is packaged in zymogen granules.
D)   operates optimally at a pH of 5 or more.
E)   helps to form peptide bonds.F) B) and E)
G) A) and B)

Question 9

Match the function with its appropriate description.
-Mastication

Accepted Answer

A)  Movement of molecules from digestive tract into blood
B)  Chewing of food
C)  Muscular contractions that propel food
D)  Removal of undigested wastes from body
E)  Breakdown of organic molecules with digestive enzymesF) A) and B)
G) A) and C)

Question 10

Match the enzyme or hormone with the organ that produces it.
-Salivary amylase

Accepted Answer

A)  Salivary glands
B)  Stomach
C)  Liver
D)  Small intestine
E)  PancreasF) A) and B)
G) A) and E)

Question 11

Insulin increases the rate of ________ transport into cells.

Accepted Answer

A)   sucrose
B)   fructose
C)   glucose
D)   galactose
E)   lactoseF) C) and E)
G) D) and E)

Question 12

Match the enzyme or hormone with the organ that produces it.
-Lactase

Accepted Answer

A)  Salivary glands
B)  Stomach
C)  Liver
D)  Small intestine
E)  PancreasF) C) and E)
G) B) and D)

Question 13

Monosaccharides

Accepted Answer

A)   are emulsified before absorption.
B)   are absorbed into lacteals.
C)   use a symport process in their absorption.
D)   need vitamin C to be absorbed.
E)   cannot be absorbed.F) B) and E)
G) A) and B)

Question 14

The defecation reflex

Accepted Answer

A)   is stimulated by distention of the rectum.
B)   inhibits further peristalsis in the rectum and lower colon.
C)   constricts the internal anal sphincter.
D)   lasts several hours.
E)   None of the choices are correct.F) A) and E)
G) B) and E)

Question 15

Match the enzyme or hormone with the organ that produces it.
-Pepsinogen

Accepted Answer

A)  Salivary glands
B)  Stomach
C)  Liver
D)  Small intestine
E)  PancreasF) B) and C)
G) B) and E)

Question 16

Arrange the ducts in the order that bile would pass through them when moving from the bile canaliculi to the small intestine without being stored in the gallbladder.
(1)  Common bile duct
(2)  Common hepatic duct
(3)  Cystic duct
(4)  Left and right hepatic ducts

Accepted Answer

A)   3, 4, 2
B)   3, 2, 1
C)   4, 2, 1
D)   4, 1, 2
E)   1, 4, 2F) B) and D)
G) C) and D)

Question 17

Bile

Accepted Answer

A)   digests proteins in the small intestine.
B)   emulsifies fats in the small intestine.
C)   is made by the gallbladder and stored by the liver.
D)   activates trypsin in the small intestine.
E)   activates the pancreas.F) All of the above
G) A) and E)

Question 18

Defecation following a meal is usually the result of

Accepted Answer

A)   mass movements stimulated by the gastrocolic and duodenocolic reflexes moving feces towards the rectum.
B)   segmentation movements stimulated by the duodenocolic reflexes.
C)   peristalsis in the small intestine initiated by entry of chyme into the duodenum.D) All of the above
E) B) and C)

Question 19

Match the enzyme with the products of its digestive activity.
-Lactase

Accepted Answer

A)  Glucose and galactose
B)  Amino acids
C)  Fatty acids and glycerol
D)  Maltose and isomaltose
E)  Polysaccharides and disaccharidesF) A) and D)
G) B) and C)

Question 20

Match the mesentery or membrane with its appropriate description.
-Coronary ligament

Accepted Answer

A)  Mesentery of the small intestine
B)  Serous membrane that covers organs
C)  Attaches the liver to the diaphragm
D)  Connects lesser curvature of stomach to the liver
E)  Mesentery of the colonF) A) and E)
G) D) and E)

Exam 24: Digestive System

Match the function with its appropriate description. -Mastication

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Insulin increases the rate of ________ transport into cells.

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Which digestive activity is NOT correctly matched to its location?

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When intestinal chyme is highly concentrated,

Correct AnswerverifiedShow Answer

Pepsinogen

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Which layer of the digestive tract is in direct contact with ingested food?

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Defecation following a meal is usually the result of

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Match the enzyme or hormone with the organ that produces it. -Salivary amylase

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Match the enzyme or hormone with the organ that produces it. -Pepsinogen

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Which of the following enzymes digests protein?

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Bile

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Monosaccharides

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Arrange the ducts in the order that bile would pass through them when moving from the bile canaliculi to the small intestine without being stored in the gallbladder. (1) Common bile duct (2) Common hepatic duct (3) Cystic duct (4) Left and right hepatic ducts

Correct AnswerverifiedShow Answer

The defecation reflex

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Match the enzyme or hormone with the organ that produces it. -Lactase

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When chyme enters the duodenum, ________ is released and stimulates the pancreas to secrete bicarbonates.

Correct AnswerverifiedShow Answer

Which of the following cell types of the stomach is correctly matched with its function?

Correct AnswerverifiedShow Answer

Most of the water that enters that digestive tract is removed by the body in urine.

Correct AnswerverifiedShow Answer

Match the mesentery or membrane with its appropriate description. -Coronary ligament

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Match the enzyme with the products of its digestive activity. -Lactase

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