Question 1

Compared to carnivores, herbivores require _______ essential amino acids and consequently are less likely to suffer from _______.

Accepted Answer

A)   fewer; undernourishment
B)   fewer; malnourishment
C)   more; undernourishment
D)   more; malnourishment
E)   more; overnourishmentF) A) and B)
G) B) and E)

Question 2

Which of the following statements about sheep digestion is true?

Accepted Answer

A)   Sheep are saprobes; they engulf food and perform intracellular digestion.
B)   Sheep are autotrophs; they synthesize organic nutrients and perform extracellular digestion.
C)   Sheep are herbivores; they ingest food and perform extracellular digestion.
D)   Sheep are detritivores; they ingest food and perform intracellular digestion.
E)   Sheep are omnivores; they ingest plants and animals and exhibit intracellular digestion.F) A) and E)
G) D) and E)

Question 3

In ruminants, such as cows and bison, microorganisms that break down cellulose are found in two chambers of the greatly enlarged stomach. In other herbivores, including rabbits, the microorganisms that break down cellulose are found in the cecum, a chamber off the large intestine. In which type of herbivore would the absorption of nutrients from cellulose be more efficient?

Accepted Answer

In vertebrates, most nutrients are absor...

Question 4

Which of the following does not contribute to the large surface area available for nutrient absorption in the small intestines?

Accepted Answer

A)   Villi
B)   Intestinal length
C)   Microvilli
D)   Bile duct
E)   Surface foldsF) B) and D)
G) C) and E)

Question 5

Which of the following is the true stomach of a ruminant?

Accepted Answer

A)   Cecum
B)   Reticulum
C)   Rumen
D)   Omasum
E)   AbomasumF) D) and E)
G) A) and B)

Question 6

If a person had enough calories per day, but lacked an essential nutrient, they would be _______.

Accepted Answer

A)   malnourished
B)   emaciated
C)   undernourished
D)   All of the above
E)   None of the aboveF) None of the above
G) A) and D)

Question 7

The liver converts pyruvate and other molecules into glucose via the process of _______.

Accepted Answer

The answer of The liver converts pyruvate and other molecules...

Question 8

Which of the following statements about vitamins is false?

Accepted Answer

A)   Vitamins, like essential amino acids and fatty acids, are organic molecules.
B)   Most vertebrates require the same vitamins.
C)   Vitamins function mostly as, or as parts of, coenzymes.
D)   Vitamins are required only in very small amounts.
E)   Humans require more water-soluble vitamins than fat-soluble vitamins.F) B) and C)
G) A) and E)

Question 9

Ruminant animals, such as goats and cows,

Accepted Answer

A)   produce enzymes in their guts that break down cellulose.
B)   practice coprophagy.
C)   have a four-chambered stomach that provides a large surface area for better nutrient absorption.
D)   produce hydrogen sulfide, an important greenhouse gas.
E)   get much of their protein from the digestion of microorganisms.F) B) and C)
G) A) and E)

Question 10

Which of the following statements about energy storage is true?

Accepted Answer

A)   Carbohydrates are stored in the liver and in muscle as glucose.
B)   Fat is not an important form of stored energy.
C)   Fat has the lowest energy content per gram.
D)   Protein is the most important energy storage component.
E)   The total glycogen stores are usually not more than a day's energy requirements.F) C) and D)
G) A) and E)

Question 11

Chylomicrons are like the tiny micelles of dietary fat in the lumen of the small intestine in that both

Accepted Answer

A)   are coated with bile.
B)   are lipid soluble.
C)   travel through the lymphatic system.
D)   contain triglycerides.
E)   are coated with lipoproteins.F) C) and D)
G) A) and E)

Question 12

Crabs and earthworms that feed actively on dead organic matter are called _______.

Accepted Answer

The answer of Crabs and earthworms that feed actively on...

Question 13

The acidic chyme in the small intestine is neutralized by

Accepted Answer

A)   bicarbonate from the pancreas.
B)   buffers from the jejunum.
C)   bile from the liver.
D)   trypsin activation.
E)   a variety of zymogens.F) A) and D)
G) A) and C)

Question 14

If a person does not produce adequate bile salts, they will likely _______.

Accepted Answer

A)   not convert starch to maltose very well
B)   not break large lipid droplets into micelles
C)   revert to autotrophy
D)   lose most of the submucosal layer in their intestines
E)   have an infected appendixF) A) and E)
G) C) and E)

Question 15

In the stomach, pepsin activates pepsinogen molecules in a positive feedback process called

Accepted Answer

A)   emulsification.
B)   absorption.
C)   autocatalysis.
D)   rumination.
E)   excretion.F) C) and E)
G) D) and E)

Question 16

Food intake is regulated by the region of the brain known as the _______.

Accepted Answer

The answer of Food intake is regulated by the region...

Question 17

In addition to serving as an endocrine gland, the pancreas secretes the digestive enzyme precursor _______.

Accepted Answer

The answer of In addition to serving as an endocrine...

Question 18

How does cotransport of sodium in a symport facilitate glucose absorption?

Accepted Answer

A)   Active transport of sodium aids in salt uptake.
B)   When sodium diffuses into cells, glucose is carried along with it.
C)   When sodium is pumped into cells, glucose moves out of the cells.
D)   Sodium and glucose both diffuse into cells from the gut.
E)   Glucose is actively transported into the gut.F) A) and D)
G) A) and C)

Question 19

Certain amino acids are called essential amino acids because they

Accepted Answer

A)   are required for making protein.
B)   cannot be made from other amino acids and must be obtained from food.
C)   are universally needed by all animals.
D)   are essential as an energy source.
E)   are required for making nucleic acids.F) C) and D)
G) A) and B)

Question 20

Which of the following statements about the essential amino acids is false?

Accepted Answer

A)   Most animals have some essential amino acids.
B)   Ingesting a surplus of one essential amino acid cannot compensate for a shortage of another.
C)   Some foods, such as legumes, supply all eight of the essential amino acids in humans.
D)   Acetyl groups can be combined with amino groups to produce many of the nonessential amino acids.
E)   Like amino acids, some fatty acids are essential.F) A) and B)
G) A) and C)

Exam 51: Nutrition, Digestion, and Absorption

How does cotransport of sodium in a symport facilitate glucose absorption?

Correct Answer
verified

Which of the following statements about energy storage is true?

Correct Answer
verified

In the stomach, pepsin activates pepsinogen molecules in a positive feedback process called

Correct Answer
verified

Compared to carnivores, herbivores require _ essential amino acids and consequently are less likely to suffer from _.

Correct Answer
verified

Certain amino acids are called essential amino acids because they

Correct Answer
verified

Which of the following statements about the essential amino acids is false?

Correct Answer
verified

Which of the following is the true stomach of a ruminant?

Correct Answer
verified

Which of the following statements about vitamins is false?

Correct Answer
verified

Chylomicrons are like the tiny micelles of dietary fat in the lumen of the small intestine in that both

Correct Answer
verified

If a person had enough calories per day, but lacked an essential nutrient, they would be _______.

Correct Answer
verified

The acidic chyme in the small intestine is neutralized by

Correct Answer
verified

Which of the following statements about sheep digestion is true?

Correct Answer
verified

Correct Answer
verified
In vertebrates, most nutrients are absor...
View Answer

If a person does not produce adequate bile salts, they will likely _______.

Correct Answer
verified

Ruminant animals, such as goats and cows,

Correct Answer
verified

Which of the following does not contribute to the large surface area available for nutrient absorption in the small intestines?

Correct Answer
verified

The liver converts pyruvate and other molecules into glucose via the process of _______.

Correct Answer
verified

Food intake is regulated by the region of the brain known as the _______.

Correct Answer
verified

In addition to serving as an endocrine gland, the pancreas secretes the digestive enzyme precursor _______.

Correct Answer
verified

Crabs and earthworms that feed actively on dead organic matter are called _______.

Correct Answer
verified

Exam 51: Nutrition, Digestion, and Absorption

How does cotransport of sodium in a symport facilitate glucose absorption?

Correct AnswerverifiedShow Answer

Which of the following statements about energy storage is true?

Correct AnswerverifiedShow Answer

In the stomach, pepsin activates pepsinogen molecules in a positive feedback process called

Correct AnswerverifiedShow Answer

Compared to carnivores, herbivores require _______ essential amino acids and consequently are less likely to suffer from _______.

Correct AnswerverifiedShow Answer

Certain amino acids are called essential amino acids because they

Correct AnswerverifiedShow Answer

Which of the following statements about the essential amino acids is false?

Correct AnswerverifiedShow Answer

Which of the following is the true stomach of a ruminant?

Correct AnswerverifiedShow Answer

Which of the following statements about vitamins is false?

Correct AnswerverifiedShow Answer

Chylomicrons are like the tiny micelles of dietary fat in the lumen of the small intestine in that both

Correct AnswerverifiedShow Answer

If a person had enough calories per day, but lacked an essential nutrient, they would be _______.

Correct AnswerverifiedShow Answer

The acidic chyme in the small intestine is neutralized by

Correct AnswerverifiedShow Answer

Which of the following statements about sheep digestion is true?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedIn vertebrates, most nutrients are absor...View AnswerShow Answer

If a person does not produce adequate bile salts, they will likely _______.

Correct AnswerverifiedShow Answer

Ruminant animals, such as goats and cows,

Correct AnswerverifiedShow Answer

Which of the following does not contribute to the large surface area available for nutrient absorption in the small intestines?

Correct AnswerverifiedShow Answer

The liver converts pyruvate and other molecules into glucose via the process of _______.

Correct AnswerverifiedShow Answer

Food intake is regulated by the region of the brain known as the _______.

Correct AnswerverifiedShow Answer

In addition to serving as an endocrine gland, the pancreas secretes the digestive enzyme precursor _______.

Correct AnswerverifiedShow Answer

Crabs and earthworms that feed actively on dead organic matter are called _______.

Correct AnswerverifiedShow Answer

Correct Answer
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Compared to carnivores, herbivores require _ essential amino acids and consequently are less likely to suffer from _.

Correct Answer
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In vertebrates, most nutrients are absor...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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