Question 1

The nitrogen from amino acid breakdown is

Accepted Answer

A)   stored in the liver.
B)   oxidized to carbohydrate.
C)   converted to urea.
D)   converted to fat.E) All of the above
F) A) and B)

Question 2

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) B) and D)
F) C) and D)

Question 3

In the case of sickle cell anemia, slight alterations in the DNA code lead to

Accepted Answer

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

Question 4

Amino acids are transported via the ________ vein to the liver.

Accepted Answer

A)   subclavian
B)   renal
C)   intestinal
D)   portalE) All of the above
F) A) and B)

Question 5

Among children with kwashiorkor,

Accepted Answer

A)   calorie intake may be low, but protein intake is severely deficient.
B)   intakes of both calories and protein are severely deficient.
C)   protein intake may be low, but calorie intake is severely deficient.
D)   calorie intake may be low, but carbohydrate intake is severely deficient.E) B) and D)
F) C) and D)

Question 6

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) All of the above
F) A) and D)

Question 7

Which of the following is one of the eight most common food allergens?

Accepted Answer

A)   Milk
B)   Chocolate
C)   Beef
D)   MangoesE) C) and D)
F) A) and D)

Question 8

When protein consumption is in excess of body needs and energy needs are met, the excess amino acids are broken down and the energy in the molecule is

Accepted Answer

A)   stored as fat.
B)   excreted in the urine.
C)   stored as amino acids in muscle.
D)   stored as amino acids in the liver.E) C) and D)
F) All of the above

Question 9

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 nonessential amino acids.E) A) and B)
F) A) and C)

Question 10

Kwashiorkor and marasmus are two forms of

Accepted Answer

A)   protein-energy malnutrition.
B)   protein overload.
C)   genetic diseases.
D)   anemia.E) All of the above
F) A) and C)

Question 11

Which type of anemia results from an error in the DNA code?

Accepted Answer

A)   Iron-deficiency anemia
B)   Megaloblastic anemia
C)   Sickle cell anemia
D)   Microcytic anemiaE) B) and C)
F) All of the above

Question 12

Human enzymes digest proteins 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) C) and D)
F) None of the above

Question 13

The chemical element found in all amino acids but not found in either carbohydrates or fats is

Accepted Answer

A)   carbon.
B)   nitrogen.
C)   oxygen.
D)   hydrogen.E) B) and C)
F) A) and D)

Question 14

High-quality proteins

Accepted Answer

A)   provide ample amounts of all of the essential amino acids.
B)   yield 7 kilocalories per gram.
C)   cannot be used to synthesize body proteins.
D)   are found only in foods of plant origin.E) A) and C)
F) All of the above

Question 15

A vegetarian who excludes animal flesh but consumes milk and eggs is referred to as a(n)

Accepted Answer

A)   lactovegetarian.
B)   lactoovovegetarian.
C)   vegan.
D)   ovovegetarian.E) A) and C)
F) All of the above

Question 16

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

Accepted Answer

A)   5%
B)   10%
C)   15%
D)   20%E) B) and C)
F) All of the above

Question 17

High-protein diets may be harmful for

Accepted Answer

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

Question 18

Many legumes are deficient in the essential amino acid ________, while grains are limited in lysine.

Accepted Answer

A)   methionine
B)   alanine
C)   lysine
D)   arginineE) A) and D)
F) A) and B)

Question 19

Cooking an egg alters its appearance due to

Accepted Answer

A)   denaturation.
B)   emulsification.
C)   esterification.
D)   detoxification.E) B) and C)
F) A) and D)

Question 20

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) All of the above
F) A) and D)

Exam 6: Proteins

Proteins regulate the acid-base balance of the blood by

Correct AnswerverifiedShow Answer

Kwashiorkor and marasmus are two forms of

Correct AnswerverifiedShow Answer

Cooking an egg alters its appearance due to

Correct AnswerverifiedShow Answer

Which type of anemia results from an error in the DNA code?

Correct AnswerverifiedShow Answer

Many legumes are deficient in the essential amino acid ________, while grains are limited in lysine.

Correct AnswerverifiedShow Answer

High-quality proteins

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Among children with kwashiorkor,

Correct AnswerverifiedShow Answer

A vegetarian who excludes animal flesh but consumes milk and eggs is referred to as a(n)

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 AnswerverifiedShow Answer

When protein consumption is in excess of body needs and energy needs are met, the excess amino acids are broken down and the energy in the molecule is

Correct AnswerverifiedShow Answer

The chemical element found in all amino acids but not found in either carbohydrates or fats is

Correct AnswerverifiedShow Answer

Amino acids are transported via the ________ vein to the liver.

Correct AnswerverifiedShow Answer

An essential amino acid

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is one of the eight most common food allergens?

Correct AnswerverifiedShow Answer

The nitrogen from amino acid breakdown is

Correct AnswerverifiedShow Answer

Human enzymes digest proteins in which areas of the body?

Correct AnswerverifiedShow Answer

High-protein diets may be harmful for

Correct AnswerverifiedShow Answer

In the case of sickle cell anemia, slight alterations in the DNA code lead to

Correct AnswerverifiedShow Answer

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