Question 1

One of the first events that occurs in the stomach in response to the presence of food is the release of _____, a hormone that stimulates the stomach to produce gastric juices.

Accepted Answer

A)   cholecystokinin
B)   gastrin
C)   secretin
D)   insulinE) A) and B)
F) A) and C) B

Question 2

Collagen is an example of

Accepted Answer

A)   a structural protein.
B)   a catalytic protein.
C)   a hormone.
D)   an immune protein.E) B) and C)
F) None of the above

Question 3

Alterations that modify a gene by changing its regulation but not the sequence of information are called

Accepted Answer

A)   mutations.
B)   phenotypic changes.
C)   transcriptional modifications.
D)   epigenetic modifications.E) A) and B)
F) A) and D)

Question 4

When _____ production is reduced because of protein deficiency, _____ can result from fluid imbalance.

Accepted Answer

A)   albumin, edema
B)   protein, infection
C)   collagen, arthritis
D)   collagen, edemaE) A) and C)
F) A) and B)

Question 5

Foods supplying low amounts of one or more essential amino acids are called

Accepted Answer

A)   incomplete protein sources.
B)   complementary protein sources.
C)   limiting foods.
D)   nonessential foods.E) B) and D)
F) A) and B)

Question 6

Marasmus is a form of protein-energy malnutrition characterized by

Accepted Answer

A)   extreme wasting of muscles.
B)   gain of abdominal adipose tissue.
C)   severe edema in the extremities.
D)   unusual growth of the jaw.E) None of the above
F) All of the above

Question 7

Chemical digestion of proteins begins in the mouth.

Accepted Answer

A) True 
 B)False

Question 8

The primary structure of a protein is

Accepted Answer

A)   the final structure of the protein.
B)   the linear arrangement of amino acids in a single peptide chain.
C)   determined by cell signaling events.
D)   altered during protein folding.E) A) and D)
F) A) and C) B

Question 9

The process of transamination

Accepted Answer

A)   is used to synthesize nonessential amino acids.
B)   is the process of transferring an amino group from an α-keto acid to an essential amino acid.
C)   is the process of transferring an amino group from a nonessential amino acid to an essential amino acid.
D)   is the process of transferring an amino group from an essential amino acid to a nonessential amino acid.E) B) and C)
F) A) and C)

Question 10

Transcription is

Accepted Answer

A)   the process by which messenger RNA is constructed using DNA as a template.
B)   the process of messenger RNA carrying the DNA information out of the nucleus.
C)   the process by which a gene is directly converted into a protein.
D)   the process by which messenger RNA is directly converted into a protein.E) A) and B)
F) A) and C)

Question 11

During times of starvation or illness a nitrogen balance study would likely demonstrate

Accepted Answer

A)   nitrogen balance.
B)   negative nitrogen balance.
C)   positive nitrogen balance.D) None of the above
E) A) and C)

Question 12

The hormones released by cells in the small intestine in response to the arrival of amino acids and smaller peptides are secretin and cholecystokinin. Together, these hormones stimulate

Accepted Answer

A)   the production of hydrochloric acid and pepsinogen in the stomach.
B)   the release of active enzymes from the pancreas.
C)   the release of bicarbonate and proenzymes from the pancreas.
D)   the release of di- and tripeptides from the absorptive cells that line the small intestine.E) All of the above
F) A) and B)

Question 13

A person's _____ is found inside the cell. In contrast, a person's _____ is what is outwardly apparent to another person.

Accepted Answer

A)   genotype, phenotype
B)   phenotype, genotype
C)   DNA, protein profile
D)   genetic mutation, genotypeE) C) and D)
F) A) and D) A

Question 14

An example of protein complementation is

Accepted Answer

A)   steak and salmon.
B)   rice and beans.
C)   corn and rice.
D)   whole grain and refined rice.E) A) and B)
F) C) and D)

Question 15

At-risk groups for protein-energy malnutrition include people with cancer or severe burns and alcoholics.

Accepted Answer

A) True 
 B)False

Question 16

Secretin, gastrin, insulin, and glucagon are examples of proteins that are

Accepted Answer

A)   enzymes.
B)   hormones.
C)   antibodies.
D)   neurotransmitters.E) A) and C)
F) None of the above

Question 17

A protein's shape depends on its amino acid sequence.

Accepted Answer

A) True 
 B)False

Question 18

The human body can recycle and reuse most of its amino acids from disassembled proteins through protein turnover.

Accepted Answer

A) True 
 B)False

Question 19

Disruption of protein folding by mechanical shaking, heat, detergents, or acids is called

Accepted Answer

A)   denaturation.
B)   transamination.
C)   translation.
D)   refolding.E) A) and B)
F) A) and C)

Question 20

The three steps involved in the process of protein synthesis are cell signaling, transcription, and

Accepted Answer

A)   transamination.
B)   deamination.
C)   translation.
D)   peptide bond cleavage.E) C) and D)
F) None of the above

Exam 5: Protein

One of the first events that occurs in the stomach in response to the presence of food is the release of _____, a hormone that stimulates the stomach to produce gastric juices.

Correct AnswerverifiedB

Collagen is an example of

Correct AnswerverifiedShow Answer

Alterations that modify a gene by changing its regulation but not the sequence of information are called

Correct AnswerverifiedShow Answer

When _____ production is reduced because of protein deficiency, _____ can result from fluid imbalance.

Correct AnswerverifiedShow Answer

Foods supplying low amounts of one or more essential amino acids are called

Correct AnswerverifiedShow Answer

Marasmus is a form of protein-energy malnutrition characterized by

Correct AnswerverifiedShow Answer

Chemical digestion of proteins begins in the mouth.

Correct AnswerverifiedShow Answer

The primary structure of a protein is

Correct AnswerverifiedB

The process of transamination

Correct AnswerverifiedShow Answer

Transcription is

Correct AnswerverifiedShow Answer

During times of starvation or illness a nitrogen balance study would likely demonstrate

Correct AnswerverifiedShow Answer

The hormones released by cells in the small intestine in response to the arrival of amino acids and smaller peptides are secretin and cholecystokinin. Together, these hormones stimulate

Correct AnswerverifiedShow Answer

A person's _____ is found inside the cell. In contrast, a person's _____ is what is outwardly apparent to another person.

Correct AnswerverifiedA

An example of protein complementation is

Correct AnswerverifiedShow Answer

At-risk groups for protein-energy malnutrition include people with cancer or severe burns and alcoholics.

Correct AnswerverifiedShow Answer

Secretin, gastrin, insulin, and glucagon are examples of proteins that are

Correct AnswerverifiedShow Answer

A protein's shape depends on its amino acid sequence.

Correct AnswerverifiedShow Answer

The human body can recycle and reuse most of its amino acids from disassembled proteins through protein turnover.

Correct AnswerverifiedShow Answer

Disruption of protein folding by mechanical shaking, heat, detergents, or acids is called

Correct AnswerverifiedShow Answer

The three steps involved in the process of protein synthesis are cell signaling, transcription, and

Correct AnswerverifiedShow Answer

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B

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When _ production is reduced because of protein deficiency, _ can result from fluid imbalance.

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B

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A person's _ is found inside the cell. In contrast, a person's _ is what is outwardly apparent to another person.

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A

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