Question 1

Which digestive hormone stimulates gall bladder contraction?

Accepted Answer

A)  gastrin
B)  cholycystokinin
C)  gastric inhibitory peptide
D)  secretinE) B) and C)
F) All of the above

Question 2

In humans,the surface area of the small intestine is

Accepted Answer

A)  100 square meters.
B)  200 square meters.
C)  300 square meters.
D)  400 square meters.
E)  500 square meters.F) A) and E)
G) A) and D)

Question 3

Which of these animals has a gastrointestinal tract?

Accepted Answer

A)  sponge
B)  hydra
C)  flatworm
D)  earthworm
E)  salamanderF) A) and B)
G) None of the above

Question 4

The rhythmic contractions of the esophagus are called

Accepted Answer

A)  esophageal contractions.
B)  esophageal convulsions.
C)  peristalsis.
D)  heartburn sensations.
E)  mastication.F) None of the above
G) B) and E)

Question 5

From the list given below,which are the animals that practice coprophagy,a process in which feces are consumed to assure digestion by symbiotic organisms?
I-horses
II-rodents
III-rabbits and hares
IV-deer

Accepted Answer

A)  I and II
B)  III
C)  I and IV
D)  II
E)  I,II,and IIIF) A) and B)
G) A) and E)

Question 6

The process in which amino acids and lactic acid are converted to glucose is known as

Accepted Answer

A)  aminolactogenesis.
B)  glycolysis.
C)  Krebs cycle.
D)  gluconeogenesis.
E)  cellular respiration.F) None of the above
G) C) and D)

Question 7

In horses,rodents,and lagomorphs,the digestion of cellulose by microorganisms takes place in the

Accepted Answer

A)  duodenum.
B)  reticulum.
C)  cecum.
D)  omasum.
E)  abomasum.F) B) and E)
G) B) and D)

Question 8

After not eating for 3 days,which of the following is likely to occur?

Accepted Answer

A)  Insulin levels will be high.
B)  Glycogen reserves will be high.
C)  Glucagon levels will be high.
D)  Blood glucose will be high.
E)  The pancreas will become inactivE.F) A) and D)
G) A) and C)

Question 9

Gizzards designed to grind food are found in

Accepted Answer

A)  mammals.
B)  insects.
C)  birds.
D)  marsupials.
E)  monotrenes.F) A) and E)
G) None of the above

Question 10

Which digestive hormone inhibits stomach emptying?

Accepted Answer

A)  gastrin
B)  cholycystokinin
C)  gastric inhibitory peptide
D)  secretinE) A) and C)
F) A) and B)

Question 11

Excess blood glucose is removed by the liver to convert it into

Accepted Answer

A)  cellulose.
B)  maltose and other disaccharides.
C)  starch.
D)  glycogen.
E)  all of thesE.F) C) and D)
G) B) and E)

Question 12

According to the diagram,which one of the following processes would occur the most after eating a meal of french fries and ice cream?

Accepted Answer

A)  II
B)  I
C)  III
D)  II and III equally
E)  I and II equallyF) D) and E)
G) None of the above

Question 13

The epithelial wall of the small intestine is covered with tiny,finger-like projections called

Accepted Answer

A)  ciliA.
B)  flagella.
C)  villi.
D)  micovilli.
E)  plexuses.F) B) and D)
G) B) and C)

Question 14

The villi and microvilli on the surface of the small intestine

Accepted Answer

A)  secrete bicarbonate.
B)  enable the small intestine to stretch.
C)  increase the absorptive surface.
D)  produce bile salts.
E)  help break the food into smaller particles.F) None of the above
G) All of the above

Question 15

The teeth of an adult human are arranged in the following fashion.(Note: The orientation is front and moving right along the bottom jaw. )

Accepted Answer

A)  incisors,molars,canines,premolars
B)  incisors,canines,molars,premolars
C)  incisors,canines,premolars,molars
D)  incisors,premolars,molars,canines
E)  canines,incisors,premolars,molarsF) A) and D)
G) C) and D)

Question 16

In the human digestive system,the stomach produces about 2 liters of HCl and other gastric secretions every day.The acid secretion of the stomach

Accepted Answer

A)  is stimulated by the release of gastrin.
B)  promotes a high pH.
C)  inhibits pepsin activity.
D)  begins the process of starch digestion.
E)  stimulates the gallbladder to contract.F) A) and E)
G) None of the above

Question 17

In humans,and other vertebrates,the digestive system consists of

Accepted Answer

A)  a one-way tube with a separate mouth and anus and accessory organs.
B)  a two-way tube with a separate mouth and anus.
C)  a tube with a single opening that serves as mouth and anus.
D)  a two-way tube with a separate mouth and anus and accessory organs.
E)  a one-way tube with a separate mouth and anus and no accessory organs.F) A) and B)
G) All of the above

Question 18

Which of the following is the most accurate statement regarding the ingestion of two tablets of Rolaids?

Accepted Answer

A)  The fluid in the stomach would begin reabsorbing.
B)  The HCl production would decrease.
C)  The pH of the stomach fluid would decrease.
D)  The pH of the stomach fluid would increase.E) None of the above
F) A) and D)

Question 19

The first organ to receive the products of digestion after absorption is the

Accepted Answer

A)  duodenum.
B)  pancreas.
C)  liver.
D)  gallbladder.
E)  colon.F) A) and D)
G) D) and E)

Question 20

Rumen of the first stomach of ruminants serves as a fermentation chamber in which bacteria and protozoa degrade

Accepted Answer

A)  protein.
B)  fats.
C)  cellulose.
D)  glucose.
E)  starch.F) C) and D)
G) A) and B)

Exam 48: The Digestive System

Gizzards designed to grind food are found in

Correct AnswerverifiedShow Answer

Which of the following is the most accurate statement regarding the ingestion of two tablets of Rolaids?

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In humans,and other vertebrates,the digestive system consists of

Correct AnswerverifiedShow Answer

Which digestive hormone stimulates gall bladder contraction?

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Which digestive hormone inhibits stomach emptying?

Correct AnswerverifiedShow Answer

The epithelial wall of the small intestine is covered with tiny,finger-like projections called

Correct AnswerverifiedShow Answer

Rumen of the first stomach of ruminants serves as a fermentation chamber in which bacteria and protozoa degrade

Correct AnswerverifiedShow Answer

In humans,the surface area of the small intestine is

Correct AnswerverifiedShow Answer

The rhythmic contractions of the esophagus are called

Correct AnswerverifiedShow Answer

The process in which amino acids and lactic acid are converted to glucose is known as

Correct AnswerverifiedShow Answer

The first organ to receive the products of digestion after absorption is the

Correct AnswerverifiedShow Answer

The teeth of an adult human are arranged in the following fashion.(Note: The orientation is front and moving right along the bottom jaw. )

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Excess blood glucose is removed by the liver to convert it into

Correct AnswerverifiedShow Answer

After not eating for 3 days,which of the following is likely to occur?

Correct AnswerverifiedShow Answer

In horses,rodents,and lagomorphs,the digestion of cellulose by microorganisms takes place in the

Correct AnswerverifiedShow Answer

From the list given below,which are the animals that practice coprophagy,a process in which feces are consumed to assure digestion by symbiotic organisms? I-horses II-rodents III-rabbits and hares IV-deer

Correct AnswerverifiedShow Answer

Which of these animals has a gastrointestinal tract?

Correct AnswerverifiedShow Answer

In the human digestive system,the stomach produces about 2 liters of HCl and other gastric secretions every day.The acid secretion of the stomach

Correct AnswerverifiedShow Answer

According to the diagram,which one of the following processes would occur the most after eating a meal of french fries and ice cream?

Correct AnswerverifiedShow Answer

The villi and microvilli on the surface of the small intestine

Correct AnswerverifiedShow Answer

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