Question 1

Fats are digested to

Accepted Answer

A)   amino acids.
B)   cellulose.
C)   fatty acids and glycerol.
D)   fructose.
E)   monosaccharides.F) None of the above
G) C) and D)

Question 2

Which of the following is associated with bilirubin?

Accepted Answer

A)   it is associated with pancreatic secretions
B)   it is found in bile
C)   it is secreted into the duodenum to carry out digestive functions
D)   is considered a waste product
E)   any two of the aboveF) A) and E)
G) None of the above

Question 3

These structures enter lacteals during absorption:

Accepted Answer

A)   amino acids.
B)   chylomicrons
C)   simple sugars
D)   bile salts.
E)   micellesF) C) and E)
G) A) and D)

Question 4

Secretin stimulates the pancreatic ____________________ cells to secrete ____________________, whereas CCK stimulates the pancreatic ____________________ cells to secrete ____________________.

Accepted Answer

duct, aqueous alkali...

Question 5

Segmentation

Accepted Answer

A)   is the primary motility in the small intestine during digestion of a meal.
B)   is both mixing and propulsive.
C)   refers to sequential ring-like contractions that sweep downward, creating a stripping motion that pushes the chyme forward.
D)   both (a)  and (b)  above.
E)   all of these answers.F) D) and E)
G) B) and C)

Question 6

What role do micelles and chylomicrons play in fat absorption?

Accepted Answer

Biliary components facilitate absorption...

Question 7

Which absorptive processes occurs?

Accepted Answer

A)   carbohydrate is absorbed by active transport in the small intestine and enters the blood.
B)   fat is absorbed by active transport in the small intestine and enters the lymph.
C)   protein is absorbed primarily by pinocytosis.
D)   the water-soluble vitamins are carried in the micelles, which are water-soluble.
E)   chylomicrons dissolve in the lipid portion of the plasma membrane to enable fat to enter the intestinal cell from the lumen.F) A) and B)
G) C) and D)

Question 8

The absorption of which of the following is associated with chylomicrons?

Accepted Answer

A)   glucose.
B)   monoglycerides and free fatty acids.
C)   amino acids.
D)   alcohol.
E)   vitamin B12.F) B) and D)
G) B) and E)

Question 9

After pepsinogen is activated, it

Accepted Answer

A)   autocatalytically activates more pepsinogen.
B)   activates the pancreatic proteolytic enzymes in the duodenal lumen after gastric emptying has occurred.
C)   inhibits the pyloric gland area in a negative-feedback fashion.
D)   both (a)  and (b)  above.
E)   all of these answers.F) C) and D)
G) A) and B)

Question 10

MATCHING
Match control mechanism with characteristic.
-travel via the blood to alter digestive motility and secretion

Accepted Answer

A)  autonomous smooth muscle function
B)  extrinsic (autonomic)  nerves
C)  hormones
D)  intrinsic nerve plexusesE) C) and D)
F) All of the above

Question 11

Match hormone with action.
-relaxes ileocecal sphincter.

Accepted Answer

A)  gastrin
B)  secretin
C)  CCK
D)  gastric inhibitory peptide
E)  histamineF) A) and B)
G) All of the above

Question 12

Match the following by writing the appropriate letter in the blank. There is only one correct answer per question and each answer may be used only once.
-gastrin

Accepted Answer

A)  Secretes NaHCO3.
B)  Enzyme for protein digestion secreted by pancreas.
C)  Activates pepsinogen.
D)  Only enzyme for fat digestion.
E)  Functions inside brush border.F) Secretes gastrin.G) Stomach hormone.H) Enzyme for carbohydrate digestion that functions primarily in the body of the stomach.I) Secreted by chief cells.J) Secretes pancreatic enzymes.K) Secreted by duodenal cells, stimulates NaHCO3.L) Inhibits stomach emptying.M) D) and E)
N) H) and I)

Question 13

The extent of absorption of the electrolytes ____________________ and ____________________ is regulated depending on the body's needs.

Accepted Answer

The answer of The extent of absorption of the electrolytes...

Question 14

Indicate the site at which the following digestive processes take place by writing the appropriate letter in the blank using the following answer code:
-Protein digestion begins.

Accepted Answer

A)  mouth
B)  stomach
C)  small intestine lumen
D)  intracellularly in the small intestine brush border
E)  colonF) C) and E)
G) None of the above

Question 15

Which factor is not involved in the regulation of digestive system function?

Accepted Answer

A)   autonomous smooth muscle function
B)   frontal lobe processing
C)   smooth muscle function
D)   extrinsic nerves
E)   hormonesF) A) and B)
G) B) and D)

Question 16

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code.
-Gastric enzyme that digests protein.

Accepted Answer

A)  bile salts
B)  pepsin(ogen) 
C)  amylase
D)  lipase
E)  trypsin(ogen) F) A) and D)
G) D) and E)

Question 17

Which of the following substances is absorbed by the stomach?

Accepted Answer

A)   glucose.
B)   caffeine.
C)   aspirin.
D)   amino acids.
E)   fatty acids.F) A) and B)
G) A) and C)

Question 18

Match digestive enzyme with correct characteristic.
-Actions occur in mouth, stomach and small intestines.

Accepted Answer

A)  amylase.
B)  trypsin
C)  chymotrypsin
D)  lipaseE) B) and C)
F) A) and D)

Question 19

Parasympathetic stimulation of the salivary glands produces a large volume of watery saliva high in enzyme concentration.

Accepted Answer

A) True 
 B)False

Question 20

MATCHING: ART
  
The accompanying figure relates to lipid digestion and absorption. Match the steps highlighted in the figure (steps 1-8)  with the statements using the letter key below.
-Lipase action

Accepted Answer

A)  Step 1
B)  Step 2
C)  Step 3
D)  Step 4
E)  Step 5F) Step 6G) Step 7H) Step 8I) B) and G)
J) D) and G)

Exam 15: The Digestive System

Fats are digested to

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Indicate the site at which the following digestive processes take place by writing the appropriate letter in the blank using the following answer code: -Protein digestion begins.

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Which of the following substances is absorbed by the stomach?

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Match hormone with action. -relaxes ileocecal sphincter.

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These structures enter lacteals during absorption:

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Match the following by writing the appropriate letter in the blank. There is only one correct answer per question and each answer may be used only once. -gastrin

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Which of the following is associated with bilirubin?

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The absorption of which of the following is associated with chylomicrons?

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Segmentation

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What role do micelles and chylomicrons play in fat absorption?

Correct AnswerverifiedBiliary components facilitate absorption...View AnswerShow Answer

The extent of absorption of the electrolytes ____________________ and ____________________ is regulated depending on the body's needs.

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MATCHING: ART The accompanying figure relates to lipid digestion and absorption. Match the steps highlighted in the figure (steps 1-8) with the statements using the letter key below. -Lipase action

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Secretin stimulates the pancreatic ____________________ cells to secrete ____________________, whereas CCK stimulates the pancreatic ____________________ cells to secrete ____________________.

Correct Answerverifiedduct, aqueous alkali...View AnswerShow Answer

MATCHING Match control mechanism with characteristic. -travel via the blood to alter digestive motility and secretion

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Match digestive enzyme with correct characteristic. -Actions occur in mouth, stomach and small intestines.

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Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code. -Gastric enzyme that digests protein.

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Parasympathetic stimulation of the salivary glands produces a large volume of watery saliva high in enzyme concentration.

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After pepsinogen is activated, it

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Which absorptive processes occurs?

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Which factor is not involved in the regulation of digestive system function?

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Biliary components facilitate absorption...
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The extent of absorption of the electrolytes and is regulated depending on the body's needs.

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Secretin stimulates the pancreatic cells to secrete , whereas CCK stimulates the pancreatic cells to secrete .

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duct, aqueous alkali...
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