Question 1

Which of the following is not true about pepsin?

Accepted Answer

A)  Amino acid chains are the digestive products of its action.
B)  Pepsin works best in an alkaline environment.
C)  Acid activates pepsin.
D)  Pepsin acts on food in the stomach.E) All of the above
F) C) and D)

Question 2

Food proteins are used most efficiently when we

Accepted Answer

A)  are eating a very low kilocalorie diet.
B)  eat large quantities of protein even though our kilocalorie intake may be low.
C)  are consuming enough carbohydrates and fats to meet our kilocalorie needs.
D)  are eating enough fat even though carbohydrate intake may be low.E) C) and D)
F) None of the above

Question 3

Donovan has been consuming large quantities of food and in violation of safe rules of athletic training is injecting testosterone.He has been seeing large temporary gains in muscle mass.He is in a state of

Accepted Answer

A)  negative protein balance.
B)  positive protein balance.
C)  energy equilibrium.
D)  excess protein balance.E) B) and C)
F) All of the above

Question 4

Which of the following is not characteristic of a child with marasmus?

Accepted Answer

A)  Skin-and-bones appearance
B)  Often less than age 2
C)  Can suffer impaired brain growth and development
D)  Edema in the abdomen and legsE) B) and C)
F) A) and D)

Question 5

Maggie has anorexia nervosa and regularly starves herself.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) A) and C)
F) A) and B)

Question 6

Proteins regulate the acid-base balance of the blood by

Accepted Answer

A)  acting as buffers.
B)  releasing nitrogen.
C)  synthesizing hydrochloric acid.
D)  binding sodium ions.E) A) and D)
F) B) and C)

Question 7

How many grams of protein are needed per day by a male non-athlete,weighing 87 kilograms?

Accepted Answer

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

Question 8

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

Question 9

Marasmus usually is associated with a deficiency of

Accepted Answer

A)  kilocalories.
B)  protein.
C)  carbohydrate.
D)  fat.E) C) and D)
F) A) and B) A

Question 10

Proteins are digested in which areas of the body?

Accepted Answer

A)  Mouth and stomach
B)  Mouth and small intestine
C)  Stomach and small intestine
D)  Small and large intestinesE) A) and B)
F) A) and C)

Question 11

Short chain proteins and ______ are the end products of protein digestion that can be taken up by the absorptive cells of the small intestine.

Accepted Answer

A)  amino acids
B)  nitrogen
C)  polypeptides
D)  amino groupsE) All of the above
F) None of the above A

Question 12

Which of the following does not describe kwashiorkor and marasmus?

Accepted Answer

A)  Forms of protein-energy malnutrition
B)  Common in developing nations
C)  Created by political,economic,geographic,social,and dietary factors
D)  Diseases that are troublesome but not life threateningE) B) and D)
F) None of the above

Question 13

One would be likely to see a negative protein balance during

Accepted Answer

A)  growth.
B)  pregnancy.
C)  starvation.
D)  recovery from surgery.E) A) and B)
F) A) and C)

Question 14

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

Accepted Answer

A)  Most do not consume enough protein.
B)  Most consume approximately the amount needed to balance losses.
C)  Athletes generally do not get enough protein without supplements.
D)  Most consume more than is needed.E) All of the above
F) A) and C)

Question 15

Treating a protein with acid,heat,or agitation will cause ______,meaning that the three-dimensional structure of the protein has been altered.

Accepted Answer

A)  alteration
B)  breakdown
C)  destruction
D)  denaturationE) A) and B)
F) A) and C)

Question 16

What is meant by the amino acid sequence of a protein?

Accepted Answer

A)  Number of side chains in the protein
B)  Folding arrangement of the peptide chain
C)  Order of appearance of amino acids in the peptide chain
D)  Order of appearance of only the essential amino acids in the proteinE) B) and D)
F) None of the above

Question 17

An essential amino acid

Accepted Answer

A)  can be synthesized in the body if there is a nitrogen source.
B)  can be synthesized in the body if caloric intake is adequate.
C)  cannot be synthesized in the body in sufficient quantity to meet body needs.
D)  can be formed in the body from semiessential amino acids.E) A) and D)
F) A) and C)

Question 18

Currently,the best estimate for the amount of protein required for nearly all adults is ______ grams per kilogram of body weight per day.

Accepted Answer

A)  2
B)  0.6
C)  0.8
D)  1.5E) A) and D)
F) B) and C) C

Question 19

Which of the following is a function of protein?

Accepted Answer

A)  Degradation of tissues
B)  Produces chylomicrons
C)  Supplies more than 40% of the kilocalories in the diet
D)  Synthesizes enzymes and hormonesE) A) and B)
F) A) and C)

Question 20

Cooking an egg alters its appearance due to

Accepted Answer

A)  denaturation.
B)  emulsification.
C)  esterification.
D)  detoxification.E) A) and B)
F) None of the above

Exam 6: Proteins

Which of the following is not true about pepsin?

Correct AnswerverifiedShow Answer

Food proteins are used most efficiently when we

Correct AnswerverifiedShow Answer

Donovan has been consuming large quantities of food and in violation of safe rules of athletic training is injecting testosterone.He has been seeing large temporary gains in muscle mass.He is in a state of

Correct AnswerverifiedShow Answer

Which of the following is not characteristic of a child with marasmus?

Correct AnswerverifiedShow Answer

Maggie has anorexia nervosa and regularly starves herself.She is likely to be in a state of

Correct AnswerverifiedShow Answer

Proteins regulate the acid-base balance of the blood by

Correct AnswerverifiedShow Answer

How many grams of protein are needed per day by a male non-athlete,weighing 87 kilograms?

Correct AnswerverifiedShow Answer

Which of the following is true about protein?

Correct AnswerverifiedShow Answer

Marasmus usually is associated with a deficiency of

Correct AnswerverifiedA

Proteins are digested in which areas of the body?

Correct AnswerverifiedShow Answer

Short chain proteins and ______ are the end products of protein digestion that can be taken up by the absorptive cells of the small intestine.

Correct AnswerverifiedA

Which of the following does not describe kwashiorkor and marasmus?

Correct AnswerverifiedShow Answer

One would be likely to see a negative protein balance during

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Treating a protein with acid,heat,or agitation will cause ______,meaning that the three-dimensional structure of the protein has been altered.

Correct AnswerverifiedShow Answer

What is meant by the amino acid sequence of a protein?

Correct AnswerverifiedShow Answer

An essential amino acid

Correct AnswerverifiedShow Answer

Currently,the best estimate for the amount of protein required for nearly all adults is ______ grams per kilogram of body weight per day.

Correct AnswerverifiedC

Which of the following is a function of protein?

Correct AnswerverifiedShow Answer

Cooking an egg alters its appearance due to

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified