Question 1

Regular soy consumption may help:

Accepted Answer

A)  increase fertility.
B)  lower blood LDL cholesterol levels.
C)  improve athletic performance.
D)  reduce muscle fatigue.E) A) and B)
F) All of the above

Question 2

The amino acid pool refers to amino acids:

Accepted Answer

A)  which are soluble in bodily fluids.
B)  present in body tissues and fluids and that are available for protein synthesis or to generate ATP.
C)  which are used by the body for building muscle tissue.
D)  which the body is not able to make and must be supplied by the diet.E) A) and D)
F) A) and C)

Question 3

Protein complementation is a technique which:

Accepted Answer

A)  increases the biological value of a protein.
B)  increases the nitrogen content of dietary protein sources.
C)  minimizes nitrogen loss in the urine.
D)  combines proteins from different sources so that essential amino acids requirements are met.E) None of the above
F) All of the above

Question 4

A pattern of food intake that eliminates all animal products is called:

Accepted Answer

A)  lacto-ovo vegetarian.
B)  vegan vegetarian.
C)  phyto vegetarian.
D)  pesco vegetarian.E) A) and D)
F) A) and C)

Question 5

Which statement about dietary protein sources is FALSE?

Accepted Answer

A)  Animal products are the most highly concentrated sources of protein.
B)  Plant sources of protein are typically rich in fiber and phytochemicals.
C)  Legumes provide about as much protein per ½ cup serving as a cup of milk.
D)  Most people in the U.S.need protein supplements to meet dietary requirements.E) C) and D)
F) All of the above

Question 6

The AMDR for protein intake is _______% of energy intake.

Accepted Answer

A)  20-35
B)  45-65
C)  30-45
D)  10-35E) B) and D)
F) All of the above

Question 7

Which nutrient(s) found in animal protein foods is not found in plant protein foods?

Accepted Answer

A)  Saturated fat
B)  B vitamins
C)  Phytochemicals
D)  None of these nutrients are found in plant protein foodsE) A) and B)
F) A) and C)

Question 8

The specific sequence of amino acids in a polypeptide chain is determined by

Accepted Answer

A)  the types of food proteins that a person consumes.
B)  DNA found in the nucleus of cells.
C)  GI tract peptidases.
D)  random interactions between free amino acids in the cytoplasm of cells.E) A) and D)
F) B) and D)

Question 9

Adverse reactions including flushing,headache,rapid heartbeat,chest pain and weakness have been reported after the consumption of:

Accepted Answer

A)  phenylalanine.
B)  isoflavones.
C)  monosodium glutamate.
D)  dipotassium phosphate.E) None of the above
F) A) and C)

Question 10

Of ____ amino acids commonly found in food proteins,____ are dispensible.

Accepted Answer

A)  20; 9
B)  11; 9
C)  20; 11
D)  24: 16E) None of the above
F) B) and C)

Question 11

Amino acids that cannot be made by the adult human body are termed:

Accepted Answer

A)  essential.
B)  hydrolyzable.
C)  incomplete.
D)  complete.E) A) and D)
F) C) and D)

Question 12

Vegetarians have a lower risk of:

Accepted Answer

A)  diabetes.
B)  cardiovascular disease.
C)  high blood pressure.
D)  All of these are correct.E) A) and B)
F) A) and C)

Question 13

The enzymes trypsin and chymotrypsin:

Accepted Answer

A)  break large polypeptides into smaller peptides.
B)  are needed to denature proteins.
C)  rearrange the sequence of amino acids in a polypeptide.
D)  are needed to make nonessential amino acids.E) B) and C)
F) B) and D)

Question 14

Positive nitrogen balance can occur:

Accepted Answer

A)  when an individual is wasting as a result of protein-energy malnutrition.
B)  if protein intake does not meet an individual's protein requirements.
C)  in a rapidly growing child.
D)  when total body nitrogen balance does not change for 30 days.E) B) and C)
F) A) and C)

Question 15

Which of the following is the best dietary source of isoflavones?

Accepted Answer

A)  Whole milk
B)  Soy products
C)  Citrus fruits
D)  BeefE) A) and C)
F) A) and D)

Question 16

Which of the following functions is performed by proteins in the body?

Accepted Answer

A)  Transport
B)  Structure
C)  Immunity
D)  All of these functions are performed by proteins.E) B) and D)
F) None of the above

Question 17

Hemoglobin is an example of:

Accepted Answer

A)  a defense protein.
B)  a transport protein.
C)  an enzyme.
D)  an immune protein (antibody) .E) None of the above
F) A) and C)

Question 18

The primary source of protein for most of the world's population is:

Accepted Answer

A)  meat.
B)  dairy.
C)  grains and vegetables.
D)  fruits.E) A) and B)
F) A) and D)

Question 19

If the shape of a protein is altered due to a genetic mutation,the _______________ of the protein may be affected.

Accepted Answer

A)  nutritional value
B)  functionality
C)  taste
D)  textureE) None of the above
F) All of the above

Question 20

A measure of protein quality determined by comparing the amount of nitrogen retained in the body with the amount absorbed from the diet is called the:

Accepted Answer

A)  chemical score.
B)  biological value.
C)  protein efficiency ratio.
D)  net protein utilization.E) A) and B)
F) B) and D)

Exam 6: Proteins and Amino Acids

A measure of protein quality determined by comparing the amount of nitrogen retained in the body with the amount absorbed from the diet is called the:

Correct AnswerverifiedShow Answer

The enzymes trypsin and chymotrypsin:

Correct AnswerverifiedShow Answer

Protein complementation is a technique which:

Correct AnswerverifiedShow Answer

Which of the following is the best dietary source of isoflavones?

Correct AnswerverifiedShow Answer

Regular soy consumption may help:

Correct AnswerverifiedShow Answer

The AMDR for protein intake is _______% of energy intake.

Correct AnswerverifiedShow Answer

Adverse reactions including flushing,headache,rapid heartbeat,chest pain and weakness have been reported after the consumption of:

Correct AnswerverifiedShow Answer

Which statement about dietary protein sources is FALSE?

Correct AnswerverifiedShow Answer

Positive nitrogen balance can occur:

Correct AnswerverifiedShow Answer

Amino acids that cannot be made by the adult human body are termed:

Correct AnswerverifiedShow Answer

The specific sequence of amino acids in a polypeptide chain is determined by

Correct AnswerverifiedShow Answer

Which nutrient(s) found in animal protein foods is not found in plant protein foods?

Correct AnswerverifiedShow Answer

The amino acid pool refers to amino acids:

Correct AnswerverifiedShow Answer

If the shape of a protein is altered due to a genetic mutation,the _______________ of the protein may be affected.

Correct AnswerverifiedShow Answer

Hemoglobin is an example of:

Correct AnswerverifiedShow Answer

Which of the following functions is performed by proteins in the body?

Correct AnswerverifiedShow Answer

A pattern of food intake that eliminates all animal products is called:

Correct AnswerverifiedShow Answer

The primary source of protein for most of the world's population is:

Correct AnswerverifiedShow Answer

Vegetarians have a lower risk of:

Correct AnswerverifiedShow Answer

Of ____ amino acids commonly found in food proteins,____ are dispensible.

Correct AnswerverifiedShow Answer

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Of amino acids commonly found in food proteins, are dispensible.

Correct Answer
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