Question 1

Of all the amino acids, how many must be supplied by the diet?

Accepted Answer

A)   2
B)   5
C)   9
D)   13
E)   17F) A) and C)
G) A) and B)

Question 2

Describe the process of protein synthesis.

Accepted Answer

Each human being is unique because of sm...

Question 3

In epigenetics , methylation involves ________.

Accepted Answer

A)   the addition of a methyl group
B)   the removal of a methyl group
C)   the failure to metabolize tyrosine
D)   the removal of amino acids
E)   the addition of glucoseF) A) and B)
G) All of the above

Question 4

The amino acid homocysteine is elevated in ________.

Accepted Answer

A)   cancer
B)   kidney disease
C)   heart disease
D)   protein-energy malnutrition
E)   osteoporosisF) D) and E)
G) C) and D)

Question 5

Viruses, bacteria, and toxins are examples of ________.

Accepted Answer

A)   antigens
B)   antibodies
C)   buffers
D)   acidosis
E)   alkalosisF) B) and D)
G) B) and E)

Question 6

What is the chief function of pepsin?

Accepted Answer

A)   emulsifying dietary proteins
B)   activating hydrochloric acid
C)   activating pancreatic proteases
D)   cleaving proteins into smaller polypeptides
E)   emulsifying dietary fatsF) B) and E)
G) A) and B)

Question 7

For whom is nitrogen balance typically positive?

Accepted Answer

A)   pregnant women
B)   starving children
C)   burn victims
D)   febrile children
E)   adult menF) A) and B)
G) B) and D)

Question 8

What is the simplest amino acid?

Accepted Answer

A)   phenylalanine
B)   glycine
C)   glutamine
D)   lysine
E)   tryptophanF) C) and E)
G) A) and E)

Question 9

Scars are made from which type of protein?

Accepted Answer

A)   ferritin
B)   albumin
C)   collagen
D)   hemoglobin
E)   enzymeF) C) and D)
G) A) and E)

Question 10

What is a ribosome?

Accepted Answer

A)   a template for protein synthesis
B)   a protein transportation machine
C)   a protein-making machine
D)   an immune booster
E)   a protein poolF) A) and D)
G) A) and E)

Question 11

To build a bone or tooth, cells first lay down a ________ and then fill it with crystals of calcium, phosphorus, magnesium, fluoride, and other minerals.

Accepted Answer

A)   matrix
B)   enzyme grid
C)   buffer
D)   fluid regulator
E)   transporterF) B) and D)
G) B) and C)

Question 12

A vegetarian who plans a meal involving rice can consume all the essential amino acids by adding another plant protein rich in ________.

Accepted Answer

A)   lysine
B)   tryptophan
C)   phenylalanine
D)   glutamic acid
E)   methionineF) A) and C)
G) B) and D)

Question 13

Which of the follow is true of amino acid supplements?

Accepted Answer

A)   They are whole proteins.
B)   They keep the digestive system from overworking.
C)   The digestive system handles whole proteins better than supplements.
D)   They save the body from having to digest proteins.
E)   They are rapidly excreted through the digestive system.F) B) and E)
G) B) and C)

Question 14

Human insulin consists of 51 amino acids chemically bonded together, which classifies it a(an)  ________.

Accepted Answer

A)   unipeptide
B)   dipeptide
C)   tripeptide
D)   oligopeptide
E)   polypeptideF) All of the above
G) A) and E)

Question 15

What are high-quality proteins and how are they derived?

Accepted Answer

A high-quality protein contains all the ...

Question 16

Which of the following are responsible for urea synthesis?

Accepted Answer

A)   all amino acids
B)   animal sources of proteins only
C)   essential amino acids only
D)   nonessential amino acids only
E)   vegetarian sources of protein onlyF) A) and C)
G) B) and E)

Question 17

How might protein consumption affect heart disease?

Accepted Answer

In the United States and other developed...

Question 18

What type of chemical reaction connects amino acids?

Accepted Answer

A)   hydrolysis
B)   oxidation
C)   denaturation
D)   condensation
E)   polymerizationF) B) and D)
G) B) and E)

Question 19

Amino acids that the body can make are called "________."

Accepted Answer

nonessenti...

Question 20

Digestive enzymes are ________ and function optimally at their specific pH.

Accepted Answer

A)   lipids
B)   carbohydrates
C)   sterols
D)   proteins
E)   supplementsF) B) and D)
G) B) and E)

Exam 6: Protein: Amino Acids

To build a bone or tooth, cells first lay down a ________ and then fill it with crystals of calcium, phosphorus, magnesium, fluoride, and other minerals.

Correct AnswerverifiedShow Answer

Human insulin consists of 51 amino acids chemically bonded together, which classifies it a(an) ________.

Correct AnswerverifiedShow Answer

Amino acids that the body can make are called "________."

Correct Answerverifiednonessenti...View AnswerShow Answer

Viruses, bacteria, and toxins are examples of ________.

Correct AnswerverifiedShow Answer

Of all the amino acids, how many must be supplied by the diet?

Correct AnswerverifiedShow Answer

What is a ribosome?

Correct AnswerverifiedShow Answer

Scars are made from which type of protein?

Correct AnswerverifiedShow Answer

How might protein consumption affect heart disease?

Correct AnswerverifiedIn the United States and other developed...View AnswerShow Answer

What is the chief function of pepsin?

Correct AnswerverifiedShow Answer

What type of chemical reaction connects amino acids?

Correct AnswerverifiedShow Answer

Describe the process of protein synthesis.

Correct AnswerverifiedEach human being is unique because of sm...View AnswerShow Answer

Digestive enzymes are ________ and function optimally at their specific pH.

Correct AnswerverifiedShow Answer

A vegetarian who plans a meal involving rice can consume all the essential amino acids by adding another plant protein rich in ________.

Correct AnswerverifiedShow Answer

What are high-quality proteins and how are they derived?

Correct AnswerverifiedA high-quality protein contains all the ...View AnswerShow Answer

Which of the follow is true of amino acid supplements?

Correct AnswerverifiedShow Answer

Which of the following are responsible for urea synthesis?

Correct AnswerverifiedShow Answer

In epigenetics , methylation involves ________.

Correct AnswerverifiedShow Answer

The amino acid homocysteine is elevated in ________.

Correct AnswerverifiedShow Answer

What is the simplest amino acid?

Correct AnswerverifiedShow Answer

For whom is nitrogen balance typically positive?

Correct AnswerverifiedShow Answer

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nonessenti...
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In the United States and other developed...
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Each human being is unique because of sm...
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A high-quality protein contains all the ...
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