Question 1

Which of the following is not a protective mechanism seen in the stomach?

Accepted Answer

A)   rapid division by and replacement of epithelial cells
B)   secretion of proteinases as zymogens
C)   mucus secretion
D)   salivary amylase
E)   All of these are mechanisms which protect the stomachF) A) and B)
G) B) and E) D

Question 2

One of the ways in which the smooth muscle contractions of the digestive tract are controlled is by

Accepted Answer

A)   mass movements.
B)   the nervous system.
C)   propulsion.
D)   peristalsis.
E)   chyme secretion.F) All of the above
G) B) and E)

Question 3

Which of the following nutrient types will not enter capillaries immediately after crossing the small intestine epithelium (i.e., they take a different path) ?

Accepted Answer

A)   carbohydrates
B)   lipids
C)   protein
D)   nucleic acids
E)   vitamin DF) None of the above
G) B) and D)

Question 4

Which of the following enzymes would you find in a cow's gut, but not in yours?

Accepted Answer

A)   cellulase
B)   pepsin
C)   collagenase
D)   carboxypeptidase
E)   acetylcholinesteraseF) D) and E)
G) All of the above

Question 5

Which of the following bacteria is known to be a contributing factor in the development of stomach ulcers?

Accepted Answer

A)   Clostridium tetani
B)   Vibrio cholerae
C)   Helicobacter pylori
D)   Staphylococcus aureus
E)   Escherichia coliF) C) and E)
G) A) and B)

Question 6

Digestion of which major nutrient type begins in the stomach?

Accepted Answer

A)   carbohydrates
B)   lipids
C)   nucleic acids
D)   proteins
E)   vitaminsF) A) and E)
G) A) and C)

Question 7

In the stomach, proteins are cleaved into amino acids by aminopeptidases.

Accepted Answer

A) True 
 B)False

Question 8

The diarrhea that is a symptom of diseases like cholera is due to problems in the function of which digestive organ?

Accepted Answer

A)   stomach
B)   small intestine
C)   large intestine
D)   appendix
E)   gall bladderF) A) and C)
G) D) and E)

Question 9

Frugivores are a type of herbivore.

Accepted Answer

A) True 
 B)False

Question 10

The large intestine concentrates undigested material by

Accepted Answer

A)   squeezing excess salts and water from the undigested material via contraction of muscles in the intestine wall.
B)   absorption of salts and water across the epithelial surface of the lumen.
C)   ingestion of excess salts and water by intestinal bacteria.
D)   storing excess salts and water in the cecum.
E)   transporting excess salts and water back to the small intestine for absorption.F) B) and C)
G) B) and D)

Question 11

Which of the following glandular secretions involved in digestion would be most likely to be released initially as zymogens?

Accepted Answer

A)   protein-digesting enzymes
B)   fat-solubilizing bile salts
C)   acid-neutralizing bicarbonate
D)   carbohydrate-digesting enzymesE) C) and D)
F) A) and C)

Question 12

Digestion and absorption allow vertebrates to use nutrients to

Accepted Answer

A)   make ATP.
B)   repair tissue damage.
C)   deliver oxygen to cells.
D)   form bone.
E)   perform all of the functions given.F) A) and C)
G) A) and E)

Question 13

In omnivores, including humans, the cecum is an important organ for digestion of cellulose.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following nutrient types enters lacteals following digestion?

Accepted Answer

A)   carbohydrates
B)   proteins
C)   nucleic acids
D)   vitamin C
E)   lipidsF) A) and D)
G) A) and C)

Question 15

The small intestine releases the hormone secretin in response to acid.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is INCORRECTLY paired with its function?

Accepted Answer

A)   lipase, triglyceride breakdown
B)   micelles, chylomicron production
C)   epithelial cells, triglyceride synthesis
D)   chylomicrons, triglyceride transport
E)   bile salts, emulsificationF) A) and B)
G) None of the above

Question 17

People who are allergic to wheat are at risk for vitamin B deficiency.

Accepted Answer

A) True 
 B)False  True

Question 18

Oral rehydration solutions that contain both salt and glucose are highly effective in treating severe dehydration caused by diarrhea and vomiting. However, glucose or salt alone are not effective. This is because water passively follows

Accepted Answer

A)   sodium and glucose, which are cotransported across the gastrointestinal epithelium.
B)   glucose and sodium, which are transported by facilitated diffusion.
C)   glucose, which provides the energy for the active transport of salt.
D)   ATP, which is required to transport sodium unless glucose is available for cotransport.
E)   glucose that is broken down quickly in the mouth by saliva and cotransported with salt via diffusion across the epithelial cells of the oral cavity.F) A) and C)
G) All of the above

Question 19

Angiomax? (bivalirudin)  is an anticoagulant currently approved in the United States for use in patients undergoing coronary angioplasty procedures. This drug was developed using scientists' knowledge of animal feeding strategies. Which type of organism would most likely be the source of this drug?

Accepted Answer

A)   baleen whales that filter large amounts of seawater
B)   scavengers that must eat rotten meat
C)   herbivores that must digest fibrous material
D)   fluid feeder that drinks blood
E)   sessile feeder that traps food on sticky surfacesF) B) and C)
G) D) and E)

Question 20

Which of the following is the primary site of nutrient absorption in the mammalian digestive system?

Accepted Answer

A)   pharynx
B)   stomach
C)   small intestine
D)   large intestine
E)   pancreasF) A) and E)
G) A) and B) C

Exam 45: Nutrition, Digestion, and Absorption

Which of the following is not a protective mechanism seen in the stomach?

Correct AnswerverifiedD

One of the ways in which the smooth muscle contractions of the digestive tract are controlled is by

Correct AnswerverifiedShow Answer

Which of the following nutrient types will not enter capillaries immediately after crossing the small intestine epithelium (i.e., they take a different path) ?

Correct AnswerverifiedShow Answer

Which of the following enzymes would you find in a cow's gut, but not in yours?

Correct AnswerverifiedShow Answer

Which of the following bacteria is known to be a contributing factor in the development of stomach ulcers?

Correct AnswerverifiedShow Answer

Digestion of which major nutrient type begins in the stomach?

Correct AnswerverifiedShow Answer

In the stomach, proteins are cleaved into amino acids by aminopeptidases.

Correct AnswerverifiedShow Answer

The diarrhea that is a symptom of diseases like cholera is due to problems in the function of which digestive organ?

Correct AnswerverifiedShow Answer

Frugivores are a type of herbivore.

Correct AnswerverifiedShow Answer

The large intestine concentrates undigested material by

Correct AnswerverifiedShow Answer

Which of the following glandular secretions involved in digestion would be most likely to be released initially as zymogens?

Correct AnswerverifiedShow Answer

Digestion and absorption allow vertebrates to use nutrients to

Correct AnswerverifiedShow Answer

In omnivores, including humans, the cecum is an important organ for digestion of cellulose.

Correct AnswerverifiedShow Answer

Which of the following nutrient types enters lacteals following digestion?

Correct AnswerverifiedShow Answer

The small intestine releases the hormone secretin in response to acid.

Correct AnswerverifiedShow Answer

Which of the following is INCORRECTLY paired with its function?

Correct AnswerverifiedShow Answer

People who are allergic to wheat are at risk for vitamin B deficiency.

Correct AnswerverifiedTrue

Oral rehydration solutions that contain both salt and glucose are highly effective in treating severe dehydration caused by diarrhea and vomiting. However, glucose or salt alone are not effective. This is because water passively follows

Correct AnswerverifiedShow Answer

Angiomax? (bivalirudin) is an anticoagulant currently approved in the United States for use in patients undergoing coronary angioplasty procedures. This drug was developed using scientists' knowledge of animal feeding strategies. Which type of organism would most likely be the source of this drug?

Correct AnswerverifiedShow Answer

Which of the following is the primary site of nutrient absorption in the mammalian digestive system?

Correct AnswerverifiedC

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