Question 1

The chemical bond joining two amino acids is called a(n) ________ bond.

Accepted Answer

A)  glycosidic
B)  ionic
C)  amino
D)  peptideE) None of the above
F) C) and D)

Question 2

Insulin is one example of a protein that acts as

Accepted Answer

A)  an antioxidant.
B)  an enzyme.
C)  a hormone.
D)  an antibody.E) B) and C)
F) A) and D)

Question 3

Which of the following is true of high-quality protein?

Accepted Answer

A)  It contains all of the essential amino acids.
B)  It provides 7 kcal/g of energy.
C)  It cannot support body maintenance.
D)  It is found only in foods of plant origin.E) None of the above
F) B) and C)

Question 4

High protein diets may be harmful for

Accepted Answer

A)  those with kidney disease.
B)  athletes.
C)  the elderly.
D)  body builders.E) A) and D)
F) B) and D)

Question 5

Denaturation refers to

Accepted Answer

A)  alteration of the three-dimensional structure of a protein.
B)  digestion of a polypeptide chain into individual amino acids.
C)  joining of two amino acids to form a dipeptide.
D)  removal of the amino group from an amino acid.E) C) and D)
F) None of the above

Question 6

What enzyme is released by the stomach to digest protein?

Accepted Answer

A)  Pepsin
B)  Lipase
C)  Amylase
D)  TrypsinE) B) and C)
F) A) and D)

Question 7

The RDA for protein translates into approximately what percentage of total daily kilocalorie needs?

Accepted Answer

A)  5%
B)  10%
C)  15%
D)  20%E) A) and B)
F) B) and C)

Question 8

A protein that acts as a hormone is

Accepted Answer

A)  insulin.
B)  trypsin.
C)  pepsin.
D)  hemoglobin.E) C) and D)
F) A) and C)

Question 9

Match between columns
                        Premises: Amino acids that can be synthesized by a healthy body in sufficient amounts
Amino acids that cannot be synthesized by humans in sufficient amounts and therefore must be included in the diet
A disease that results from consuming an insufficient amount of protein and energy
Dietary proteins that are low in or lack one or more essential amino acids
A disease that results from consuming marginal energy and considerably insufficient protein despite high needs
The essential amino acid in lowest concentration in a food relative to body needs
A physical state in which protein intake is equal to related protein losses
Dietary proteins that contain ample amounts of all nine essential amino acids
A buildup of fluids in extracellular spaces
Two food protein sources that make up for each other's inadequate supply of specific essential amino acids

Accepted Answer

The Answer of Edema and Kwashiorkor and Protein equilibrium and is...

Question 10

Which of the following is a true statement about the digestion and absorption of proteins?

Accepted Answer

A)  Polypeptide chains are digested to yield individual amino acids,which can be absorbed into the blood.
B)  Polypeptide chains are digested to yield dipeptides,which can be absorbed into the blood.
C)  Many whole proteins are absorbed by phagocytosis and enter the blood.
D)  The products of protein digestion are first absorbed into the lymphatic system,which empties into the blood.E) All of the above
F) A) and D)

Question 11

The typical American diet supplies approximately what percentage of protein as essential amino acids?

Accepted Answer

A)  25%
B)  40%
C)  50%
D)  10%E) None of the above
F) C) and D)

Question 12

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) A) and B)
F) A) and C)

Question 13

The basic building block of a protein is called a(n)

Accepted Answer

A)  fatty acid.
B)  monosaccharide.
C)  amino acid.
D)  keto acid.E) All of the above
F) A) and D)

Question 14

In the case of sickle cell anemia,the slight alterations in the DNA of red blood cells lead to

Accepted Answer

A)  defects in the membranes of these cells.
B)  changes in the structure of the protein hemoglobin.
C)  poor use of glucose for energy.
D)  inability of the cells to make protein.E) A) and B)
F) B) and C)

Question 15

Because the ______ diet is recognized as being low in meat,rich in fresh fruit and vegetables,low in added sugar and saturated fatty acids,it has been recommended as a sustainable alternative to the MyPlate dietary pattern.

Accepted Answer

A)  Canadian
B)  Mediterranean
C)  Asian
D)  EuropeanE) All of the above
F) None of the above

Question 16

Which of the following describes the fate of excess protein?

Accepted Answer

A)  It is stored as glycogen.
B)  It is excreted via sweat glands.
C)  It is stored as fat.
D)  It is used for heat.E) None of the above
F) A) and B)

Question 17

Proteins that bind to foreign proteins in the body are

Accepted Answer

A)  enzymes.
B)  antibodies.
C)  hormones.
D)  collagen.E) C) and D)
F) All of the above

Question 18

If Betty wants to eat the most nutrient-dense source of protein,she would consume

Accepted Answer

A)  whole milk.
B)  beef.
C)  tuna.
D)  egg yolks.E) B) and C)
F) None of the above

Question 19

Which of the following is true about an incomplete protein source?

Accepted Answer

A)  It,by definition,lacks all essential amino acids.
B)  It can support body growth and maintenance by itself.
C)  To adequately meet protein needs from incomplete protein sources,a person would have to eat two complementary proteins.
D)  Lower quantities of this source could be eaten to get adequate quantities of essential amino acids.E) A) and C)
F) All of the above

Question 20

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)  Chicken is our main animal source of protein.E) C) and D)
F) B) and D)

Exam 6: Proteins

Which of the following is a true statement about the digestion and absorption of proteins?

Correct Answer
verified

Which of the following is true of high-quality protein?

Correct Answer
verified

A protein that acts as a hormone is

Correct Answer
verified

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

Correct Answer
verified

Which of the following describes the fate of excess protein?

Correct Answer
verified

Match the following with the terms below

If Betty wants to eat the most nutrient-dense source of protein,she would consume

Correct Answer
verified

The basic building block of a protein is called a(n)

Correct Answer
verified

The typical American diet supplies approximately what percentage of protein as essential amino acids?

Correct Answer
verified

The RDA for protein translates into approximately what percentage of total daily kilocalorie needs?

Correct Answer
verified

Denaturation refers to

Correct Answer
verified

Insulin is one example of a protein that acts as

Correct Answer
verified

Proteins that bind to foreign proteins in the body are

Correct Answer
verified

What enzyme is released by the stomach to digest protein?

Correct Answer
verified

In the case of sickle cell anemia,the slight alterations in the DNA of red blood cells lead to

Correct Answer
verified

Because the ______ diet is recognized as being low in meat,rich in fresh fruit and vegetables,low in added sugar and saturated fatty acids,it has been recommended as a sustainable alternative to the MyPlate dietary pattern.

Correct Answer
verified

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 Answer
verified

Which of the following is true about an incomplete protein source?

Correct Answer
verified

The chemical bond joining two amino acids is called a(n) ________ bond.

Correct Answer
verified

High protein diets may be harmful for

Correct Answer
verified

Exam 6: Proteins

Which of the following is a true statement about the digestion and absorption of proteins?

Correct AnswerverifiedShow Answer

Which of the following is true of high-quality protein?

Correct AnswerverifiedShow Answer

A protein that acts as a hormone is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following describes the fate of excess protein?

Correct AnswerverifiedShow Answer

Match the following with the terms below

If Betty wants to eat the most nutrient-dense source of protein,she would consume

Correct AnswerverifiedShow Answer

The basic building block of a protein is called a(n)

Correct AnswerverifiedShow Answer

The typical American diet supplies approximately what percentage of protein as essential amino acids?

Correct AnswerverifiedShow Answer

The RDA for protein translates into approximately what percentage of total daily kilocalorie needs?

Correct AnswerverifiedShow Answer

Denaturation refers to

Correct AnswerverifiedShow Answer

Insulin is one example of a protein that acts as

Correct AnswerverifiedShow Answer

Proteins that bind to foreign proteins in the body are

Correct AnswerverifiedShow Answer

What enzyme is released by the stomach to digest protein?

Correct AnswerverifiedShow Answer

In the case of sickle cell anemia,the slight alterations in the DNA of red blood cells lead to

Correct AnswerverifiedShow Answer

Because the ______ diet is recognized as being low in meat,rich in fresh fruit and vegetables,low in added sugar and saturated fatty acids,it has been recommended as a sustainable alternative to the MyPlate dietary pattern.

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

Which of the following is true about an incomplete protein source?

Correct AnswerverifiedShow Answer

The chemical bond joining two amino acids is called a(n) ________ bond.

Correct AnswerverifiedShow Answer

High protein diets may be harmful for

Correct AnswerverifiedShow Answer

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