Question 1

Which of the following is not a major activity of the stomach?

Accepted Answer

A)  mechanical digestion
B)  HCl secretion
C)  mucus secretion
D)  nutrient absorption
E)  enzyme secretion

Question 2

Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids; both digestive processes

Accepted Answer

A)  are catalyzed by the same enzyme.
B)  are excludible intracellular processes in most organisms.
C)  add a water molecule to break bonds (hydrolysis) .
D)  require the presence of hydrochloric acid to lower the pH.
E)  require ATP as an energy source.

Question 3

Because adult lampreys attach onto the surface of large fish for long periods of time to feed on body fluids, they can accomplish nutritional balance without need for a

Accepted Answer

A)  liver.
B)  pancreas.
C)  intestine.
D)  stomach.
E)  gallbladder.

Question 4

Stomach cells are moderately well adapted to the acidity and protein-digesting activities in the stomach by having

Accepted Answer

A)  a sufficient colony of H. pylori.
B)  a thick, mucous secretion and active mitosis of epithelial cells.
C)  a high level of secretion by chief cells.
D)  a high level of secretion from parietal cells.
E)  secretions enter the stomach from the pancreas.

Question 5

Use the following figure to answer the questions below.
 
-Examine the digestive system structures in the figure above. Bacteria that produce vitamins as products are residents of location

Accepted Answer

A)  3.
B)  4.
C)  5.
D)  7.
E)  8.

Question 6

Digestive secretions with a pH of 2 are characteristic of the

Accepted Answer

A)  small intestine.
B)  stomach.
C)  pancreas.
D)  liver.
E)  mouth.

Question 7

In the digestive system, peristalsis is

Accepted Answer

A)  a process of fat emulsification in the small intestine.
B)  voluntary control of the rectal sphincters regulating defecation.
C)  the transport of nutrients to the liver through the hepatic portal vessel.
D)  a common cause of loss of appetite, fatigue, and dehydration.
E)  smooth muscle contractions that move food along the esophagus.

Question 8

Upon activation by stomach acidity, the secretions of the parietal cells

Accepted Answer

A)  initiate the digestion of protein in the stomach.
B)  initiate the mechanical digestion of lipids in the stomach.
C)  initiate the chemical digestion of lipids in the stomach.
D)  include pepsinogen.
E)  delay digestion until the food arrives in the small intestine.

Question 9

Use the following figure to answer the questions below.
 
-Examine the digestive system structures in the figure above. Most of the digestion of fats occurs in section(s)

Accepted Answer

A)  3 only.
B)  4 only.
C)  1 and 4.
D)  3 and 4.
E)  1, 3, and 4.

Question 10

Coprophagy, the nutrition-boosting ingestion of fecal material, is important for the nutritional balance of

Accepted Answer

A)  ruminants such as cows.
B)  insects and arthropods.
C)  rabbits and their relatives.
D)  squirrels and some rodents.
E)  very large animals, such as elephants. C

Question 11

A nutritional monomer that can be transported in the blood after a typical meal is

Accepted Answer

A)  sucrose.
B)  maltose.
C)  fatty acid.
D)  dipeptide.
E)  trinucleotide.

Question 12

If you were to jog 1 km a few hours after lunch, which stored fuel would you probably tap?

Accepted Answer

A)  muscle proteins
B)  muscle and liver glycogen
C)  fat stored in the liver
D)  fat stored in adipose tissue
E)  blood proteins

Question 13

To maintain adequate nutrition, animals require dietary access to certain amino acids. An amino acid that is referred to as "nonessential" would be best described as one that

Accepted Answer

A)  can be made by the animal's body from other substances.
B)  is not used by the animal in biosynthesis.
C)  must be ingested in the diet.
D)  is not readily absorbed by the gastrointestinal tract.
E)  is not found in many proteins.

Question 14

Obesity in humans is most clearly linked to

Accepted Answer

A)  type 1 diabetes and prostate cancer.
B)  type 1 diabetes and breast cancer.
C)  type 2 diabetes and muscle hypertrophy.
D)  type 2 diabetes and cardiovascular disease.
E)  type 2 diabetes and decreased appetite. D

Question 15

Cellulose-digesting symbiotic microbes exist in all of the following locations except

Accepted Answer

A)  the large intestine and cecum of rabbits.
B)  the stomach of a ruminant.
C)  the stomach of a deep-sea giant tube worm.
D)  the crop of an herbivorous bird.
E)  the enlarged cecum of the koala bear.

Question 16

Folic acid supplements have become especially important for pregnant women because

Accepted Answer

A)  folic acid supplies vitamins that only pregnant women can use.
B)  the folic acid is stored in adipose tissue by pregnant women so supplements are needed to make more available in the circulation.
C)  the fetus makes high levels of folic acid.
D)  folic acid deprivation is associated with neural tube abnormalities in a fetus.
E)  folic acid deprivation is a cause of heart abnormalities in a newborn.

Question 17

A mineral that is especially important for preventing anemia is

Accepted Answer

A)  zinc.
B)  iron.
C)  iodine.
D)  molybdenum.
E)  folic acid.

Question 18

Pepsin is a digestive enzyme that

Accepted Answer

A)  is manufactured by the pancreas.
B)  helps stabilize fat-water emulsions.
C)  splits maltose into monosaccharides.
D)  begins the hydrolysis of proteins in the stomach.
E)  is denatured and rendered inactive in solutions with low pH.

Question 19

A general rule relating the capacity of a specific animal's digestive system to provide adequate access to substrates for biosynthesis of cellular components, as well as fuel molecules needed for ATP production, is that the animal should have access to

Accepted Answer

A)  a high-protein, low-carbohydrate diet.
B)  a diet low in lipids and high in protein.
C)  a low-calorie diet with a large intake of fluids, especially water.
D)  a diet that matches the "food pyramid" for the species.
E)  a diet that maximizes vitamins and minerals.

Question 20

A group of animals among which a relatively long cecum is likely to be found is the

Accepted Answer

A)  carnivores.
B)  herbivores.
C)  autotrophs.
D)  heterotrophs.
E)  omnivores. B

Exam 41: Animal Nutrition

Which of the following is not a major activity of the stomach?

Correct AnswerverifiedShow Answer

Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids; both digestive processes

Correct AnswerverifiedShow Answer

Because adult lampreys attach onto the surface of large fish for long periods of time to feed on body fluids, they can accomplish nutritional balance without need for a

Correct AnswerverifiedShow Answer

Stomach cells are moderately well adapted to the acidity and protein-digesting activities in the stomach by having

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Examine the digestive system structures in the figure above. Bacteria that produce vitamins as products are residents of location

Correct AnswerverifiedShow Answer

Digestive secretions with a pH of 2 are characteristic of the

Correct AnswerverifiedShow Answer

In the digestive system, peristalsis is

Correct AnswerverifiedShow Answer

Upon activation by stomach acidity, the secretions of the parietal cells

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Examine the digestive system structures in the figure above. Most of the digestion of fats occurs in section(s)

Correct AnswerverifiedShow Answer

Coprophagy, the nutrition-boosting ingestion of fecal material, is important for the nutritional balance of

Correct AnswerverifiedC

A nutritional monomer that can be transported in the blood after a typical meal is

Correct AnswerverifiedShow Answer

If you were to jog 1 km a few hours after lunch, which stored fuel would you probably tap?

Correct AnswerverifiedShow Answer

To maintain adequate nutrition, animals require dietary access to certain amino acids. An amino acid that is referred to as "nonessential" would be best described as one that

Correct AnswerverifiedShow Answer

Obesity in humans is most clearly linked to

Correct AnswerverifiedD

Cellulose-digesting symbiotic microbes exist in all of the following locations except

Correct AnswerverifiedShow Answer

Folic acid supplements have become especially important for pregnant women because

Correct AnswerverifiedShow Answer

A mineral that is especially important for preventing anemia is

Correct AnswerverifiedShow Answer

Pepsin is a digestive enzyme that

Correct AnswerverifiedShow Answer

A general rule relating the capacity of a specific animal's digestive system to provide adequate access to substrates for biosynthesis of cellular components, as well as fuel molecules needed for ATP production, is that the animal should have access to

Correct AnswerverifiedShow Answer

A group of animals among which a relatively long cecum is likely to be found is the

Correct AnswerverifiedB

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C

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D

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B