Question 1

What is the chief function of pepsin?

Accepted Answer

A)  Emulsifies dietary proteins
B)  Activates hydrochloric acid
C)  Activates pancreatic proteases
D)  Cleaves proteins into smaller polypeptidesE) C) and D)
F) B) and D)

Question 2

Your college dormitory roommate,James,told you that he's had anemia for quite some time and that it's from having abnormally-shaped hemoglobin.What type of anemia does James have?

Accepted Answer

A)  Sickle-cell anemia
B)  Macrocytic anemia
C)  Iron-deficiency anemia
D)  Low oxygen-carrying anemiaE) A) and B)
F) A) and C)

Question 3

What is opsin?

Accepted Answer

A)  An antigen
B)  An antibody
C)  A light-sensitive protein
D)  A blood transport proteinE) A) and C)
F) None of the above

Question 4

An example of a protein with quaternary polypeptide structures is

Accepted Answer

A)  insulin.
B)  tryptophan.
C)  hemoglobin.
D)  disulfide bridges.E) None of the above
F) C) and D)

Question 5

Which of the following describes the structure of an antibody?

Accepted Answer

A)  Tripeptide
B)  Small nucleic acid
C)  Huge protein molecule
D)  Large peptide moleculeE) None of the above
F) A) and C)

Question 6

Approximately how many different amino acids are used in the synthesis of body proteins?

Accepted Answer

A)  5
B)  10
C)  20
D)  35E) A) and C)
F) All of the above

Question 7

Which of the following is a feature of hemoglobin?

Accepted Answer

A)  It has no tertiary structure
B)  It holds the mineral calcium
C)  It is constructed of 4 polypeptide chains
D)  It has no primary or secondary structureE) All of the above
F) C) and D)

Question 8

Relative to animal proteins,which of the following amino acids is present in lesser amounts in proteins of legumes?

Accepted Answer

A)  Alanine
B)  Isoleucine
C)  Tryptophan
D)  Glutamic acidE) C) and D)
F) None of the above

Question 9

What is the usual fate of orally ingested enzyme supplements?

Accepted Answer

A)  Digested by gastrointestinal proteases
B)  Rapidly degraded by salivary secretions
C)  Mostly absorbed in original form from the stomach
D)  Completely absorbed in original form from the jejunumE) All of the above
F) C) and D)

Question 10

Your friend Jill has just joined her community college soccer team.How much protein should she consume each day?

Accepted Answer

A)  0.8 g/kg
B)  up to 1.0 g/kg
C)  1.2-1.7 g/kg
D)  2.5-2.9 g/kgE) None of the above
F) All of the above

Question 11

Which of the following describes a relationship between protein/amino acids and heart disease?

Accepted Answer

A)  Substituting soy protein for animal protein raises blood cholesterol levels
B)  High blood levels of the amino acid arginine are a risk factor for atherosclerosis
C)  High levels of homocysteine in food promote elevation of blood low-density lipoproteins
D)  Elevated blood homocysteine levels are associated with smoking cigarettes and drinking alcoholE) C) and D)
F) All of the above

Question 12

Which of the following describes an association between protein intake and kidney function?

Accepted Answer

A)  Low-protein diets increase the risk for kidney stone formation
B)  Restricting protein intake may slow the progression of kidney disease
C)  High protein intakes over the long term represent a risk factor for kidney disease
D)  Liberal protein intakes result in high urea production,which increases the long-term efficiency of the kidneysE) A) and C)
F) B) and D)

Question 13

Which of the following is the most likely side effect of a high-protein,low-carbohydrate diet?

Accepted Answer

A)  Diarrhea
B)  Increased thirst
C)  Nitrogen toxicity
D)  Increased water retention in the bodyE) All of the above
F) A) and C)

Question 14

The body's usual response to detection of antigens is to synthesize

Accepted Answer

A)  mutations.
B)  antibodies.
C)  erythrocytes.
D)  whey protein.E) A) and B)
F) B) and C)

Question 15

What is the Daily Value for protein based on a 2000-kcalorie intake?

Accepted Answer

A)  25 g
B)  50 g
C)  75 g
D)  100 gE) None of the above
F) A) and D)

Question 16

Gelatin is a poor-quality protein because it

Accepted Answer

A)  lacks tryptophan.
B)  lacks methionine.
C)  is poorly digested.
D)  is poorly absorbed.E) A) and B)
F) A) and C)

Question 17

What is the simplest amino acid?

Accepted Answer

A)  Valine
B)  Glycine
C)  Alanine
D)  MethionineE) All of the above
F) A) and B)

Question 18

A prominent result of transamination reactions is the synthesis of

Accepted Answer

A)  essential amino acids.
B)  nonessential amino acids.
C)  neurotransmitters and hormones.
D)  both nonessential and essential amino acids.E) None of the above
F) B) and C)

Exam 6: Protein: Amino Acids

What is the chief function of pepsin?

Correct Answer
verified

Your friend Jill has just joined her community college soccer team.How much protein should she consume each day?

Correct Answer
verified

What is the simplest amino acid?

Correct Answer
verified

What is the Daily Value for protein based on a 2000-kcalorie intake?

Correct Answer
verified

What is the usual fate of orally ingested enzyme supplements?

Correct Answer
verified

Which of the following is a feature of hemoglobin?

Correct Answer
verified

Your college dormitory roommate,James,told you that he's had anemia for quite some time and that it's from having abnormally-shaped hemoglobin.What type of anemia does James have?

Correct Answer
verified

The body's usual response to detection of antigens is to synthesize

Correct Answer
verified

What is opsin?

Correct Answer
verified

Which of the following describes a relationship between protein/amino acids and heart disease?

Correct Answer
verified

Which of the following describes the structure of an antibody?

Correct Answer
verified

Relative to animal proteins,which of the following amino acids is present in lesser amounts in proteins of legumes?

Correct Answer
verified

Gelatin is a poor-quality protein because it

Correct Answer
verified

Which of the following is the most likely side effect of a high-protein,low-carbohydrate diet?

Correct Answer
verified

Approximately how many different amino acids are used in the synthesis of body proteins?

Correct Answer
verified

Which of the following describes an association between protein intake and kidney function?

Correct Answer
verified

A prominent result of transamination reactions is the synthesis of

Correct Answer
verified

An example of a protein with quaternary polypeptide structures is

Correct Answer
verified

Exam 6: Protein: Amino Acids

What is the chief function of pepsin?

Correct AnswerverifiedShow Answer

Your friend Jill has just joined her community college soccer team.How much protein should she consume each day?

Correct AnswerverifiedShow Answer

What is the simplest amino acid?

Correct AnswerverifiedShow Answer

What is the Daily Value for protein based on a 2000-kcalorie intake?

Correct AnswerverifiedShow Answer

What is the usual fate of orally ingested enzyme supplements?

Correct AnswerverifiedShow Answer

Which of the following is a feature of hemoglobin?

Correct AnswerverifiedShow Answer

Your college dormitory roommate,James,told you that he's had anemia for quite some time and that it's from having abnormally-shaped hemoglobin.What type of anemia does James have?

Correct AnswerverifiedShow Answer

The body's usual response to detection of antigens is to synthesize

Correct AnswerverifiedShow Answer

What is opsin?

Correct AnswerverifiedShow Answer

Which of the following describes a relationship between protein/amino acids and heart disease?

Correct AnswerverifiedShow Answer

Which of the following describes the structure of an antibody?

Correct AnswerverifiedShow Answer

Relative to animal proteins,which of the following amino acids is present in lesser amounts in proteins of legumes?

Correct AnswerverifiedShow Answer

Gelatin is a poor-quality protein because it

Correct AnswerverifiedShow Answer

Which of the following is the most likely side effect of a high-protein,low-carbohydrate diet?

Correct AnswerverifiedShow Answer

Approximately how many different amino acids are used in the synthesis of body proteins?

Correct AnswerverifiedShow Answer

Which of the following describes an association between protein intake and kidney function?

Correct AnswerverifiedShow Answer

A prominent result of transamination reactions is the synthesis of

Correct AnswerverifiedShow Answer

An example of a protein with quaternary polypeptide structures is

Correct AnswerverifiedShow Answer

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verified

Correct Answer
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