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Enzymes are proteins that catalyze chemical reactions without being physically altered.

A) True
B) False

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Complementary proteins provide all twenty essential amino acids.

A) True
B) False

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Protein-energy malnutrition is seen only in developing countries.

A) True
B) False

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Discuss the health benefits associated with becoming a vegetarian.

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There are numerous health benefits assoc...

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Which of the following foods is a source of complete protein?


A) broccoli
B) apple
C) chicken
D) whole grain bread

E) None of the above
F) A) and D)

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The process in which a protein loses its shape and function when exposed to acids, heat, and heavy metals is deamination.

A) True
B) False

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Experts argue whether livestock production is the major source of worldwide degradation of the land. Discuss the pros and cons associated with this controversy.

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The controversy surrounding the impact o...

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In phenylketonuria (PKU) , which amino acid becomes conditionally essential?


A) phenylalanine
B) tyrosine
C) alanine
D) cysteine

E) A) and D)
F) None of the above

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Marasmus is a serious condition resulting from inadequate intakes of protein and energy.

A) True
B) False

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Under normal physiological conditions, every cell of the body is capable of making each type of protein needed by the body.

A) True
B) False

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Which of the following statements is FALSE?


A) HCl denatures protein to allow digestive enzymes to break down the protein.
B) HCl inhibits the digestion of fat so it does not compete with protein digestion.
C) HCl untangles the strands of protein and breaks the peptide bonds.
D) HCl converts pepsinogen into pepsin.

E) C) and D)
F) A) and B)

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Which of the following is a body protein that is stored in a gland and secreted to an organ to restore normal body conditions or balance?


A) enzyme
B) hormone
C) antibody
D) buffer

E) None of the above
F) All of the above

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Egg whites stiffen when they are whipped. The change that occurs in the protein is called


A) denaturation.
B) translocation.
C) transcription.
D) deamination.

E) B) and C)
F) None of the above

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Carlos is a healthy 19-year-old college student who is sedentary. He is 5'11" tall and weighs 175 pounds. How many grams of protein would you recommend he consume each day?


A) 55 grams
B) 64 grams
C) 75 grams
D) 84 grams

E) A) and D)
F) B) and D)

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Two amino acids are joined together by a peptide bond to form a dipeptide. What is the by-product of this process?


A) ammonia
B) water
C) carbon dioxide
D) hydrochloric acid

E) B) and C)
F) A) and D)

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The process through which mRNA copies genetic information from DNA and carries it to the ribosome is called


A) translation.
B) deamination.
C) denaturation.
D) transcription.

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

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The process of combining two incomplete proteins to make a complete protein is called


A) the protein-combining method.
B) amino acid sequencing method.
C) mutual supplementation.
D) protein.

E) All of the above
F) A) and C)

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The electrically charged particle that assists in maintaining the body's fluid balance is called a(n)


A) enzyme.
B) protease.
C) hormone.
D) electrolyte.

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

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The positively charged electrolyte concentrated inside the cell is potassium, and the positively charged electrolyte concentrated outside the cell is


A) oxygen.
B) sodium.
C) hydrogen.
D) nitrogen.

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

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The process of transferring the amine group from one amino acid to another is called


A) gene expression.
B) alteration.
C) deamination.
D) transamination.

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

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