Question 1

The symbiotic microbes that help nourish a ruminant live mainly in specialized regions of the

Accepted Answer

A)  large intestine.
B)  liver.
C)  small intestine.
D)  pharynx.
E)  stomach.F) B) and E)
G) C) and D)

Question 2

The following questions refer to the digestive system structures in Figure 41.1.
  
Figure 41.1
-Where are the agents that help emulsify fat produced?

Accepted Answer

A)  1
B)  2
C)  3
D)  8
E)  9F) A) and E)
G) D) and E)

Question 3

Which of the following describes peristalsis in the digestive system?

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 through the alimentary canalF) C) and D)
G) A) and B)

Question 4

Individuals whose diet consists primarily of corn would likely become

Accepted Answer

A)  obese.
B)  anorexic.
C)  overnourished.
D)  undernourished.
E)  malnourished.F) B) and E)
G) B) and D)

Question 5

Which of the following statements is True of mammals?

Accepted Answer

A)  All foods begin their enzymatic digestion in the mouth.
B)  After leaving the oral cavity, the bolus enters the larynx.
C)  The epiglottis prevents food from entering the trachea.
D)  Enzyme production continues in the esophagus.
E)  The trachea leads to the esophagus and then to the stomach.F) D) and E)
G) A) and C)

Question 6

Which of the following statements describes pepsin?

Accepted Answer

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

Question 7

Numerous adult humans are currently treated for reflux disorders. However, at an earlier time in medical history these same individuals probably would have been diagnosed with gastric ulcers. Which of the following has most contributed to correct diagnosis of this problem?

Accepted Answer

A)  better pH monitoring
B)  improvements in X-ray technology
C)  ability to diagnose and treat H. pylori infection
D)  ability to perform colonoscopy
E)  ability to perform sonographyF) B) and E)
G) None of the above

Question 8

What is the substrate of salivary amylase?

Accepted Answer

A)  protein
B)  starch
C)  sucrose
D)  glucose
E)  maltoseF) All of the above
G) C) and D)

Question 9

Which of the following is a fat-soluble vitamin?

Accepted Answer

A)  vitamin A
B)  vitamin B12
C)  vitamin C
D)  iodine
E)  calciumF) B) and E)
G) B) and D)

Question 10

Most nutrients absorbed into the lymph or bloodstream are in which form?

Accepted Answer

A)  disaccharides
B)  polymers
C)  monomers
D)  enzymes
E)  peptidesF) C) and E)
G) B) and D)

Question 11

Use the following information to answer the following questions.
Mouse mutations can affect an animal's appetite and eating habits. The ob gene produces a satiety factor (the hormone leptin) . The db gene product is required to respond to the satiety factor (the leptin receptor) .
-Which of the following occurs when digestion of organic molecules results in more energy-rich molecules than are immediately required by the animal?

Accepted Answer

A)  The excess is eliminated.
B)  The excess is stored as starch.
C)  The excess is stored as glycogen.
D)  The excess is oxidized.
E)  The excess is hydrolyzed.F) A) and B)
G) A) and C)

Question 12

The following questions refer to the digestive system structures in Figure 41.1.
  
Figure 41.1
-Where does the complete digestion of carbohydrates occur?

Accepted Answer

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

Question 13

Which of the following is an advantage of a complete digestive system over a gastrovascular cavity?

Accepted Answer

A)  Extracellular digestion is not needed.
B)  Specialized regions are possible.
C)  Digestive enzymes can be more specific.
D)  Extensive branching is possible.
E)  Intracellular digestion is easier.F) C) and D)
G) A) and D)

Question 14

Bacteria are beneficial to animal nutrition, including that of humans. Which of the following is among their greatest benefits to us?

Accepted Answer

A)  production of vitamins A and C
B)  generation of gases needed for elimination
C)  absorption of organic materials
D)  production of biotin and vitamin K
E)  recovery of water from fecal matterF) A) and E)
G) B) and C)

Question 15

Which of the following enzymes works most effectively at a very low pH?

Accepted Answer

A)  salivary amylase
B)  trypsin
C)  pepsin
D)  pancreatic amylase
E)  pancreatic lipaseF) None of the above
G) B) and E)

Question 16

Which of the following minerals is associated with its use in animals?

Accepted Answer

A)  calcium-construction and maintenance of bone
B)  magnesium-cofactor in enzymes that make ATP
C)  iron-necessary for thyroid function
D)  sulfur-ingredient of nucleic acids
E)  iodine-important in nerve functionF) B) and E)
G) A) and E)

Question 17

In which group of animals would you expect to find a relatively long cecum?

Accepted Answer

A)  carnivores
B)  herbivores
C)  autotrophs
D)  heterotrophs
E)  omnivoresF) A) and D)
G) B) and D)

Question 18

Intracellular digestion of peptides is usually immediately preceded by which process?

Accepted Answer

A)  hydrolysis
B)  endocytosis
C)  absorption
D)  elimination
E)  secretionF) B) and E)
G) C) and D)

Question 19

The following questions refer to the digestive system structures in Figure 41.1.
  
Figure 41.1
-How does the digestion and absorption of fat differ from that of carbohydrates?

Accepted Answer

A)  Processing of fat does not require any digestive enzymes, whereas the processing of carbohydrates does.
B)  Fat absorption occurs in the stomach, whereas carbohydrates are absorbed from the small intestine.
C)  Carbohydrates need to be emulsified before they can be digested, whereas fats do not.
D)  Most absorbed fat first enters the lymphatic system, whereas carbohydrates directly enter the blood.
E)  Only fat must be worked on by bacteria in the large intestine before it can be absorbed.F) A) and B)
G) A) and C)

Question 20

Foods eaten by animals are most often composed largely of macromolecules. This requires the animals to have methods for which of the following?

Accepted Answer

A)  elimination
B)  dehydration synthesis
C)  enzymatic hydrolysis
D)  regurgitation
E)  demineralizationF) B) and C)
G) A) and B)

Exam 41: Animal Nutrition

Which of the following is an advantage of a complete digestive system over a gastrovascular cavity?

Correct Answer
verified

The symbiotic microbes that help nourish a ruminant live mainly in specialized regions of the

Correct Answer
verified

Numerous adult humans are currently treated for reflux disorders. However, at an earlier time in medical history these same individuals probably would have been diagnosed with gastric ulcers. Which of the following has most contributed to correct diagnosis of this problem?

Correct Answer
verified

Intracellular digestion of peptides is usually immediately preceded by which process?

Correct Answer
verified

Most nutrients absorbed into the lymph or bloodstream are in which form?

Correct Answer
verified

Individuals whose diet consists primarily of corn would likely become

Correct Answer
verified

Which of the following statements is True of mammals?

Correct Answer
verified

Correct Answer
verified

Foods eaten by animals are most often composed largely of macromolecules. This requires the animals to have methods for which of the following?

Correct Answer
verified

Bacteria are beneficial to animal nutrition, including that of humans. Which of the following is among their greatest benefits to us?

Correct Answer
verified

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 -How does the digestion and absorption of fat differ from that of carbohydrates?

Correct Answer
verified

Which of the following describes peristalsis in the digestive system?

Correct Answer
verified

Which of the following is a fat-soluble vitamin?

Correct Answer
verified

What is the substrate of salivary amylase?

Correct Answer
verified

Which of the following statements describes pepsin?

Correct Answer
verified

Which of the following minerals is associated with its use in animals?

Correct Answer
verified

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 -Where are the agents that help emulsify fat produced?

Correct Answer
verified

Which of the following enzymes works most effectively at a very low pH?

Correct Answer
verified

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 -Where does the complete digestion of carbohydrates occur?

Correct Answer
verified

In which group of animals would you expect to find a relatively long cecum?

Correct Answer
verified

Exam 41: Animal Nutrition

Which of the following is an advantage of a complete digestive system over a gastrovascular cavity?

Correct AnswerverifiedShow Answer

The symbiotic microbes that help nourish a ruminant live mainly in specialized regions of the

Correct AnswerverifiedShow Answer

Numerous adult humans are currently treated for reflux disorders. However, at an earlier time in medical history these same individuals probably would have been diagnosed with gastric ulcers. Which of the following has most contributed to correct diagnosis of this problem?

Correct AnswerverifiedShow Answer

Intracellular digestion of peptides is usually immediately preceded by which process?

Correct AnswerverifiedShow Answer

Most nutrients absorbed into the lymph or bloodstream are in which form?

Correct AnswerverifiedShow Answer

Individuals whose diet consists primarily of corn would likely become

Correct AnswerverifiedShow Answer

Which of the following statements is True of mammals?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Foods eaten by animals are most often composed largely of macromolecules. This requires the animals to have methods for which of the following?

Correct AnswerverifiedShow Answer

Bacteria are beneficial to animal nutrition, including that of humans. Which of the following is among their greatest benefits to us?

Correct AnswerverifiedShow Answer

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 -How does the digestion and absorption of fat differ from that of carbohydrates?

Correct AnswerverifiedShow Answer

Which of the following describes peristalsis in the digestive system?

Correct AnswerverifiedShow Answer

Which of the following is a fat-soluble vitamin?

Correct AnswerverifiedShow Answer

What is the substrate of salivary amylase?

Correct AnswerverifiedShow Answer

Which of the following statements describes pepsin?

Correct AnswerverifiedShow Answer

Which of the following minerals is associated with its use in animals?

Correct AnswerverifiedShow Answer

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 -Where are the agents that help emulsify fat produced?

Correct AnswerverifiedShow Answer

Which of the following enzymes works most effectively at a very low pH?

Correct AnswerverifiedShow Answer

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 -Where does the complete digestion of carbohydrates occur?

Correct AnswerverifiedShow Answer

In which group of animals would you expect to find a relatively long cecum?

Correct AnswerverifiedShow Answer

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