Question 1

Match the following with the descriptions below.
-Complementary proteins

Accepted Answer

A)  A buildup of fluids in extracellular spaces
B)  Amino acids that can be synthesized by a healthy body in sufficient amounts
C)  Two food protein sources that make up for each other's inadequate supply of specific essential amino acids
D)  A disease that results from consuming an insufficient amount of protein and energy
E)  The essential amino acid in lowest concentration in a food relative to body needsF) Dietary proteins that are low in or lack one or more essential amino acidsG) Amino acids that cannot be synthesized by humans in sufficient amounts and therefore must be included in the dietH) A physical state in which protein intake is equal to related protein lossesI) A disease that results from consuming marginal energy and considerably insufficient protein despite high needsJ) Dietary proteins that contain ample amounts of all nine essential amino acidsK) A) and B)
L) A) and G)

Question 2

The disease phenylketonuria (PKU)  illustrates how a nonessential amino acid can become conditionally essential as a result of a genetic disease. A person with PKU has a limited ability to metabolize the essential amino acid

Accepted Answer

A)   phenylalanine.
B)   lysine.
C)   methionine.
D)   ascorbic acid.E) None of the above
F) A) and B)

Question 3

How many grams of protein are needed per day by a male nonathlete weighing 87 kilograms?

Accepted Answer

A)   70
B)   87
C)   174
D)   191E) C) and D)
F) A) and B)

Question 4

Match the following with the descriptions below.
-Limiting amino acid

Accepted Answer

A)  A buildup of fluids in extracellular spaces
B)  Amino acids that can be synthesized by a healthy body in sufficient amounts
C)  Two food protein sources that make up for each other's inadequate supply of specific essential amino acids
D)  A disease that results from consuming an insufficient amount of protein and energy
E)  The essential amino acid in lowest concentration in a food relative to body needsF) Dietary proteins that are low in or lack one or more essential amino acidsG) Amino acids that cannot be synthesized by humans in sufficient amounts and therefore must be included in the dietH) A physical state in which protein intake is equal to related protein lossesI) A disease that results from consuming marginal energy and considerably insufficient protein despite high needsJ) Dietary proteins that contain ample amounts of all nine essential amino acidsK) C) and H)
L) E) and F)

Question 5

Which of the following is true about protein?

Accepted Answer

A)   It is unique in that it is the only dietary component that contains selenium.
B)   It is important primarily for increasing bone density.
C)   It is made up of combinations of approximately 20 amino acids.
D)   It is made up of combinations of amino acids and fatty acids.E) B) and C)
F) A) and B) C

Question 6

Most proteins are ________, which are composed of 10 or more amino acids.

Accepted Answer

A)   dipeptides
B)   tripeptides
C)   proteases
D)   polypeptidesE) A) and B)
F) C) and D)

Question 7

Edema appears when there is a severe lack of dietary protein because

Accepted Answer

A)   sodium is retained in the body.
B)   blood protein levels fall and fluid shifts into extracellular spaces.
C)   the blood vessels become more permeable to ions.
D)   the kidneys are unable to concentrate urine.E) A) and D)
F) A) and C) B

Question 8

Kwashiorkor appears in children between the ages of 2 and 5 years. The reason is that

Accepted Answer

A)   growth needs are low.
B)   children have been weaned from breast milk to starchy gruels.
C)   by this time, adequate exposure to other children allows them to catch it.
D)   protein intake has been high for a long enough time to cause kidney damage.E) A) and B)
F) None of the above

Question 9

Match the following with the descriptions below.
-Essential amino acids

Accepted Answer

A)  A buildup of fluids in extracellular spaces
B)  Amino acids that can be synthesized by a healthy body in sufficient amounts
C)  Two food protein sources that make up for each other's inadequate supply of specific essential amino acids
D)  A disease that results from consuming an insufficient amount of protein and energy
E)  The essential amino acid in lowest concentration in a food relative to body needsF) Dietary proteins that are low in or lack one or more essential amino acidsG) Amino acids that cannot be synthesized by humans in sufficient amounts and therefore must be included in the dietH) A physical state in which protein intake is equal to related protein lossesI) A disease that results from consuming marginal energy and considerably insufficient protein despite high needsJ) Dietary proteins that contain ample amounts of all nine essential amino acidsK) A) and I)
L) C) and D)

Question 10

Jack weighs 176 pounds. What is his RDA for protein?

Accepted Answer

A)   10 grams
B)   64 grams
C)   80 grams
D)   27 gramsE) None of the above
F) A) and B)

Question 11

Maggie has anorexia nervosa and regularly consumes far less energy and nutrients than she needs. She is likely to be in a state of

Accepted Answer

A)   protein equilibrium.
B)   positive protein balance.
C)   negative protein balance.
D)   positive energy balance.E) None of the above
F) A) and C)

Question 12

Which of the following is true about pepsin?

Accepted Answer

A)   Pepsin breaks down protein into glucose.
B)   Pepsin works best in an alkaline environment.
C)   Acid activates pepsin in the stomach.
D)   Pepsin is secreted by the pancreas.E) A) and D)
F) All of the above

Question 13

The most reliable source of vitamin B-12 for the vegan would be

Accepted Answer

A)   fortified soybean milk.
B)   shellfish.
C)   cheese.
D)   eggs.E) None of the above
F) All of the above

Question 14

Food proteins are used most efficiently when we

Accepted Answer

A)   consume a very-low-kilocalorie diet.
B)   consume a low-carbohydrate diet.
C)   consume enough carbohydrates and fats to meet our kilocalorie needs.
D)   consume them with alcohol.E) A) and B)
F) B) and C)

Question 15

Which of the following is true about protein intake in the United States?

Accepted Answer

A)   Plant sources of protein predominate in the United States.
B)   We eat less animal sources of protein than people in Asia and Africa.
C)   About 70% of the protein we eat in the United States comes from animal products.
D)   Seafood is our main animal source of protein.E) A) and C)
F) None of the above

Question 16

The type of malnutrition that results from severely deficient intake of both calories and protein is called

Accepted Answer

A)   kwashiorkor.
B)   marasmus.
C)   sickle cell anemia.
D)   phenylketonuria.E) None of the above
F) B) and C)

Question 17

Negative protein balance is likely during

Accepted Answer

A)   growth.
B)   pregnancy.
C)   starvation.
D)   recovery from surgery.E) All of the above
F) A) and B)

Question 18

Plant-based dietary patterns are associated with lower risk of

Accepted Answer

A)   cardiovascular disease.
B)   colorectal cancer.
C)   diabetes.
D)   All of the choices are correct.E) A) and B)
F) A) and C)

Question 19

Which of the following is a food that provides ample amounts of all of the essential amino acids?

Accepted Answer

A)   Wheat
B)   Peanut butter
C)   Navy beans
D)   MilkE) A) and B)
F) B) and C)

Question 20

Antibodies are

Accepted Answer

A)   chemical messengers produced by glands.
B)   catalysts that speed the rate of chemical reactions.
C)   compounds that transport lipids through the blood.
D)   proteins produced by white blood cells as part of the immune response.E) None of the above
F) A) and B) D

Exam 6: Proteins

Match the following with the descriptions below. -Complementary proteins

Correct AnswerverifiedShow Answer

The disease phenylketonuria (PKU) illustrates how a nonessential amino acid can become conditionally essential as a result of a genetic disease. A person with PKU has a limited ability to metabolize the essential amino acid

Correct AnswerverifiedShow Answer

How many grams of protein are needed per day by a male nonathlete weighing 87 kilograms?

Correct AnswerverifiedShow Answer

Match the following with the descriptions below. -Limiting amino acid

Correct AnswerverifiedShow Answer

Which of the following is true about protein?

Correct AnswerverifiedC

Most proteins are ________, which are composed of 10 or more amino acids.

Correct AnswerverifiedShow Answer

Edema appears when there is a severe lack of dietary protein because

Correct AnswerverifiedB

Kwashiorkor appears in children between the ages of 2 and 5 years. The reason is that

Correct AnswerverifiedShow Answer

Match the following with the descriptions below. -Essential amino acids

Correct AnswerverifiedShow Answer

Jack weighs 176 pounds. What is his RDA for protein?

Correct AnswerverifiedShow Answer

Maggie has anorexia nervosa and regularly consumes far less energy and nutrients than she needs. She is likely to be in a state of

Correct AnswerverifiedShow Answer

Which of the following is true about pepsin?

Correct AnswerverifiedShow Answer

The most reliable source of vitamin B-12 for the vegan would be

Correct AnswerverifiedShow Answer

Food proteins are used most efficiently when we

Correct AnswerverifiedShow Answer

Which of the following is true about protein intake in the United States?

Correct AnswerverifiedShow Answer

The type of malnutrition that results from severely deficient intake of both calories and protein is called

Correct AnswerverifiedShow Answer

Negative protein balance is likely during

Correct AnswerverifiedShow Answer

Plant-based dietary patterns are associated with lower risk of

Correct AnswerverifiedShow Answer

Which of the following is a food that provides ample amounts of all of the essential amino acids?

Correct AnswerverifiedShow Answer

Antibodies are

Correct AnswerverifiedD

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C

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B

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D