Question 1

The activities of cells in different layers of the tubular gastrointestinal tract are regulated by clusters of nerves located in the submucosa.These nerve complexes are called

Accepted Answer

A)  villi.
B)  serosa.
C)  epithelia.
D)  plexuses.E) B) and C)
F) A) and D)

Question 2

Place the processes occurring in the digestive tract in the correct order.I-Peristaltic waves of contraction propel the food along the esophagus.II-Gastric juices are secreted with the arrival of food into the duodenum.III-The acidic chyme is transferred through the pyloric sphincter.IV-HCl and pepsin begin digestion of proteins into shorter polypeptides.

Accepted Answer

A)  II, IV, and III
B)  IV, III, and II
C)  II, III, and IV
D)  I, II, and IVE) None of the above
F) All of the above

Question 3

The pancreas is an important accessory organ of the digestive system because it adds all of the following substances to the small intestine except

Accepted Answer

A)  DNase, RNase.
B)  lactase.
C)  trypsin, chymotrypsin.
D)  bicarbonate.E) A) and B)
F) A) and C)

Question 4

If a person is diagnosed with lactose intolerance, which of the following is likely?

Accepted Answer

A)  Eating dairy foods would be lethal.
B)  This person could only drink milk.
C)  Eating dairy products could cause gastrointestinal pain.
D)  Eating fatty foods would be lethal.E) C) and D)
F) A) and D) C

Question 5

A baby is born without the ability to make parietal cells.This baby would not be able to ___.

Accepted Answer

A)  denature (unfold)  milk proteins
B)  absorb glucose and galactose
C)  emulsify fats
D)  digest fatsE) B) and C)
F) A) and D)

Question 6

Which process in the diagram would occur the most after eating a fatty meal of french fries and ice cream?

Accepted Answer

A)  II
B)  I
C)  III
D)  II and III equallyE) B) and C)
F) A) and D)

Question 7

The secretion of pepsinogen and HCl is controlled by the hormone

Accepted Answer

A)  insulin.
B)  gastrin.
C)  pepsin.
D)  secretin.E) A) and B)
F) A) and C)

Question 8

In humans, the surface area of the small intestine is

Accepted Answer

A)  3 square centimeters.
B)  3 square meters.
C)  300 square meters.
D)  3,000 square meters.E) A) and B)
F) B) and C)

Question 9

The gizzard is to a bird as the _____________ is/are to a mammal.

Accepted Answer

A)  stomach
B)  liver
C)  pancreas
D)  teethE) C) and D)
F) None of the above

Question 10

Which of the following represents the correct order of adult human teeth, beginning at the front and moving right along the bottom jaw?

Accepted Answer

A)  incisors, canines, premolars, molars
B)  incisors, canines, molars, premolars
C)  incisors, molars, canines, premolars
D)  incisors, premolars, molars, caninesE) B) and D)
F) B) and C) A

Question 11

Which process in the diagram causes the greatest insulin release?

Accepted Answer

A)  II
B)  III
C)  I
D)  both I and II equallyE) None of the above
F) All of the above

Question 12

Pancreatic secretion of bicarbonate is stimulated by _____.

Accepted Answer

A)  secretin
B)  gastric inhibitory peptide
C)  glucagon
D)  cholecystokininE) None of the above
F) C) and D)

Question 13

The luminal contents of the same organ that secretes the hormone into the blood inhibits the further release of ______.

Accepted Answer

A)  gastrin
B)  cholecystokinin
C)  secretin
D)  gastric inhibitory peptideE) None of the above
F) B) and D)

Question 14

Which molecule is not able to be absorbed across the stomach wall?

Accepted Answer

A)  alcohol
B)  water
C)  aspirin
D)  glucoseE) A) and C)
F) C) and D)

Question 15

The products of fat digestion in the small intestine are reassembled into triglycerides by the intestinal epithelium, before combining them with proteins to form ___________.

Accepted Answer

A)  chylomicrons
B)  chyme
C)  vesicles
D)  bileE) None of the above
F) B) and C)

Question 16

The liver produces ________ that functions in emulsification of fats.

Accepted Answer

A)  insulin
B)  secretin
C)  bile
D)  trypsinE) A) and B)
F) All of the above

Question 17

When diet and exercise has failed to produce any significant weight loss, some patients who are seriously overweight elect to have stomach surgery.A procedure galled gastric sleeve surgery removes more than half of the stomach, leaving a tube (or sleeve)  about the size of a banana.Following gastric sleeve surgery, patients would have the least trouble ____.

Accepted Answer

A)  eating large chunks of food of relatively hard consistency
B)  eating protein-rich foods
C)  eating large amounts of food at one time
D)  eating carbohydrate-rich foodsE) B) and D)
F) B) and C)

Question 18

A new mammal has been discovered in the thickly-forested mountains of Papua New Guinea.The squirrel-like animal lives in the canopy of the forest and has a diet rich in leaves.On occasion, however, the animal drops to the ground to quickly fill its cheeks with its own fecal droppings, for ingestion once it is safely back in the trees.The GI tract of this animal would most likely include ____________.

Accepted Answer

A)  a simple stomach and a large cecum
B)  a simple stomach, a short small intestine and colon, and a small cecum
C)  a short intestine and no cecum
D)  a long small intestine with abundant villi and an appendix at the beginning of the large intestineE) C) and D)
F) B) and D) A

Question 19

Because of the hepatic portal vein, the _____ is the first organ to receive most of the products of digestion.

Accepted Answer

A)  pancreas
B)  heart
C)  liver
D)  brainE) A) and D)
F) C) and D)

Question 20

A baby is born without the ability to make chief cells.What would be the best type of diet for this baby?

Accepted Answer

A)  a low-fat diet
B)  a diet low in minerals and vitamins
C)  a diet low in complex carbohydrates such as starch
D)  a diet low in proteinE) None of the above
F) B) and C)

Exam 47: The Digestive System

The activities of cells in different layers of the tubular gastrointestinal tract are regulated by clusters of nerves located in the submucosa.These nerve complexes are called

Correct Answer
verified

Correct Answer
verified

The pancreas is an important accessory organ of the digestive system because it adds all of the following substances to the small intestine except

Correct Answer
verified

If a person is diagnosed with lactose intolerance, which of the following is likely?

Correct Answer
verified
C

A baby is born without the ability to make parietal cells.This baby would not be able to ___.

Correct Answer
verified

Which process in the diagram would occur the most after eating a fatty meal of french fries and ice cream?

Correct Answer
verified

The secretion of pepsinogen and HCl is controlled by the hormone

Correct Answer
verified

In humans, the surface area of the small intestine is

Correct Answer
verified

The gizzard is to a bird as the _____________ is/are to a mammal.

Correct Answer
verified

Which of the following represents the correct order of adult human teeth, beginning at the front and moving right along the bottom jaw?

Correct Answer
verified
A

Which process in the diagram causes the greatest insulin release?

Correct Answer
verified

Pancreatic secretion of bicarbonate is stimulated by _____.

Correct Answer
verified

The luminal contents of the same organ that secretes the hormone into the blood inhibits the further release of ______.

Correct Answer
verified

Which molecule is not able to be absorbed across the stomach wall?

Correct Answer
verified

The products of fat digestion in the small intestine are reassembled into triglycerides by the intestinal epithelium, before combining them with proteins to form ___________.

Correct Answer
verified

The liver produces ________ that functions in emulsification of fats.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Because of the hepatic portal vein, the _____ is the first organ to receive most of the products of digestion.

Correct Answer
verified

A baby is born without the ability to make chief cells.What would be the best type of diet for this baby?

Correct Answer
verified

Exam 47: The Digestive System

The activities of cells in different layers of the tubular gastrointestinal tract are regulated by clusters of nerves located in the submucosa.These nerve complexes are called

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The pancreas is an important accessory organ of the digestive system because it adds all of the following substances to the small intestine except

Correct AnswerverifiedShow Answer

If a person is diagnosed with lactose intolerance, which of the following is likely?

Correct AnswerverifiedC

A baby is born without the ability to make parietal cells.This baby would not be able to ___.

Correct AnswerverifiedShow Answer

Which process in the diagram would occur the most after eating a fatty meal of french fries and ice cream?

Correct AnswerverifiedShow Answer

The secretion of pepsinogen and HCl is controlled by the hormone

Correct AnswerverifiedShow Answer

In humans, the surface area of the small intestine is

Correct AnswerverifiedShow Answer

The gizzard is to a bird as the _____________ is/are to a mammal.

Correct AnswerverifiedShow Answer

Which of the following represents the correct order of adult human teeth, beginning at the front and moving right along the bottom jaw?

Correct AnswerverifiedA

Which process in the diagram causes the greatest insulin release?

Correct AnswerverifiedShow Answer

Pancreatic secretion of bicarbonate is stimulated by _____.

Correct AnswerverifiedShow Answer

The luminal contents of the same organ that secretes the hormone into the blood inhibits the further release of ______.

Correct AnswerverifiedShow Answer

Which molecule is not able to be absorbed across the stomach wall?

Correct AnswerverifiedShow Answer

The products of fat digestion in the small intestine are reassembled into triglycerides by the intestinal epithelium, before combining them with proteins to form ___________.

Correct AnswerverifiedShow Answer

The liver produces ________ that functions in emulsification of fats.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedA

Because of the hepatic portal vein, the _____ is the first organ to receive most of the products of digestion.

Correct AnswerverifiedShow Answer

A baby is born without the ability to make chief cells.What would be the best type of diet for this baby?

Correct AnswerverifiedShow Answer

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C

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A

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A

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