Question 1

Which nutrient participates in demethylation?

Accepted Answer

A)  folate 
B)  a phytochemical in green tea 
C)  lysine 
D)  vitamin C 
E)  iron 
A)  folate 
B)  a phytochemical in green tea 
C)  lysine 
D)  vitamin C 
E)  iron

Question 2

An example of a protein with quaternary polypeptide structures is _____.

Accepted Answer

A)  insulin 
B)  tryptophan 
C)  hemoglobin 
D)  disulfide bridges 
E)  valine 
A)  insulin 
B)  tryptophan 
C)  hemoglobin 
D)  disulfide bridges 
E)  valine

Question 3

Which amino acid has been advertised in the popular media for treating insomnia and depression?

Accepted Answer

A)  glycine 
B)  arginine 
C)  tryptophan 
D)  phenylalanine 
E)  proline 
A)  glycine 
B)  arginine 
C)  tryptophan 
D)  phenylalanine 
E)  proline

Question 4

The production of urea hits its maximum rate at intakes approaching ________ grams of protein per day.

Accepted Answer

A)  5 
B)  50 
C)  100 
D)  250 
E)  500 
A)  5 
B)  50 
C)  100 
D)  250 
E)  500

Question 5

Compare and contrast essential, nonessential, and conditionally essential amino acids. Include examples of each

Accepted Answer

More than half of the amino acids are no

Question 6

How do proteins regulate fluid balance?

Accepted Answer

A)  Proteins are hydrophilic. 
B)  Water attracts proteins. 
C)  Water degrades proteins. 
D)  Proteins form polymers of water. 
E)  Proteins are hydrophobic. 
A)  Proteins are hydrophilic. 
B)  Water attracts proteins. 
C)  Water degrades proteins. 
D)  Proteins form polymers of water. 
E)  Proteins are hydrophobic.

Question 7

The digestibility of most animal proteins is ________.

Accepted Answer

A)  50 to 59% 
B)  60 to 69% 
C)  70 to 79% 
D)  80 to 89% 
E)  90 to 99% 
A)  50 to 59% 
B)  60 to 69% 
C)  70 to 79% 
D)  80 to 89% 
E)  90 to 99%

Question 8

A diet that restricts phenylalanine and supplies tyrosine is the only current treatment for people born with the single-gene disorder ________.

Accepted Answer

A)  DNA 
B)  ALC 
C)  NLM 
D)  PKU 
E)  BHA 
A)  DNA 
B)  ALC 
C)  NLM 
D)  PKU 
E)  BHA

Question 9

Which disease is caused by a sequencing error in the structure of hemoglobin, which changes its shape and characteristics?

Accepted Answer

A)  diabetes 
B)  marasmus 
C)  phenylketonuria 
D)  sickle-cell anemia 
E)  hemolytic anemia 
A)  diabetes 
B)  marasmus 
C)  phenylketonuria 
D)  sickle-cell anemia 
E)  hemolytic anemia

Question 10

Describe the relationship between protein turnover and nitrogen balance. How does nitrogen balance differ among infants, adults, and those who are injured or on weight-loss diets?

Accepted Answer

Protein turnover and nitrogen balance go

Question 11

Which of the following is NOT an assumption made in the formulation of the RDA for protein?

Accepted Answer

A)  People are healthy and do not have unusual metabolic needs for protein. 
B)  Dietary protein is of mixed quality. 
C)  Dietary carbohydrate and fat intakes are adequate. 
D)  The body will use protein efficiently. 
E)  Dietary protein needs are lower in infants and children. 
A)  People are healthy and do not have unusual metabolic needs for protein. 
B)  Dietary protein is of mixed quality. 
C)  Dietary carbohydrate and fat intakes are adequate. 
D)  The body will use protein efficiently. 
E)  Dietary protein needs are lower in infants and children.

Question 12

What is the most likely reason for a person to have abnormally high blood urea levels?

Accepted Answer

A)  liver dysfunction 
B)  kidney dysfunction 
C)  rapid weight gain 
D)  protein intake one-tenth the RDA 
E)  hyperstimulation of the immune system 
A)  liver dysfunction 
B)  kidney dysfunction 
C)  rapid weight gain 
D)  protein intake one-tenth the RDA 
E)  hyperstimulation of the immune system

Question 13

What is the average daily protein intake in United States?

Accepted Answer

A)  50 g 
B)  65 g 
C)  80 g 
D)  125 g 
E)  175 g 
A)  50 g 
B)  65 g 
C)  80 g 
D)  125 g 
E)  175 g

Question 14

A ________ provides a standard against which to measure the quality of other proteins.

Accepted Answer

The answer of A ________ provides a standard against which...

Question 15

The tangled shape of a polypeptide is its ________ structure, which gives it maximum stability.

Accepted Answer

A)  primary 
B)  secondary 
C)  tertiary 
D)  quaternary 
E)  denaturalized 
A)  primary 
B)  secondary 
C)  tertiary 
D)  quaternary 
E)  denaturalized

Question 16

Match between columns
                        Premises: Element found in some amino acids
Organic acid with a carbon group
Globular protein that accounts for 80% of the body's iron
Neurotransmitter that regulates sleep
A typical limiting amino acid
Combination of ammonia and carbon dioxide
A dietary nonessential amino acid
High-quality plant protein
A condition of protein malnutrition
Degradation and synthesis of protein
Nonessential amino acid supplied by diet in special circumstances
Disease caused by sequencing errors
Low-quality animal protein
Term for two or more amino acids bonded together
When messenger RNA sequences amino acids
An amino acid that may lower blood pressure
When messenger RNA is made from DNA
When a cell converts genetic code into RNA and protein
Enzyme active in the stomach
Change in protein when agitated

Accepted Answer

The Answer of Transcription and Arginine and Marasmus and Denaturation is...

Question 17

About how much protein is provided by 1 cup of milk?

Accepted Answer

A)  4 g 
B)  8 g 
C)  16 g 
D)  32 g 
E)  56 g 
A)  4 g 
B)  8 g 
C)  16 g 
D)  32 g 
E)  56 g

Question 18

Which protein, acting as a hormone, regulates blood glucose?

Accepted Answer

A)  oxytocin 
B)  prolactin 
C)  thyroxine 
D)  antidiuretic 
E)  insulin 
A)  oxytocin 
B)  prolactin 
C)  thyroxine 
D)  antidiuretic 
E)  insulin

Question 19

A bond that connects the acid end of one amino acid with the amino end of another, forming a link in a protein chain, is called a "________."

Accepted Answer

The answer of A bond that connects the acid end...

Question 20

Which term refers to the change in a protein's shape due to the application of heat or acid?

Accepted Answer

A)  oxygenation 
B)  condensation 
C)  denaturation 
D)  destabilization 
E)  hydrolyzation 
A)  oxygenation 
B)  condensation 
C)  denaturation 
D)  destabilization 
E)  hydrolyzation

Exam 6: Protein: Amino Acids

Which nutrient participates in demethylation?

An example of a protein with quaternary polypeptide structures is _____.

Which amino acid has been advertised in the popular media for treating insomnia and depression?

The production of urea hits its maximum rate at intakes approaching ________ grams of protein per day.

Compare and contrast essential, nonessential, and conditionally essential amino acids. Include examples of each

How do proteins regulate fluid balance?

The digestibility of most animal proteins is ________.

A diet that restricts phenylalanine and supplies tyrosine is the only current treatment for people born with the single-gene disorder ________.

Which disease is caused by a sequencing error in the structure of hemoglobin, which changes its shape and characteristics?

Describe the relationship between protein turnover and nitrogen balance. How does nitrogen balance differ among infants, adults, and those who are injured or on weight-loss diets?

Which of the following is NOT an assumption made in the formulation of the RDA for protein?

What is the most likely reason for a person to have abnormally high blood urea levels?

What is the average daily protein intake in United States?

A ________ provides a standard against which to measure the quality of other proteins.

The tangled shape of a polypeptide is its ________ structure, which gives it maximum stability.

About how much protein is provided by 1 cup of milk?

Which protein, acting as a hormone, regulates blood glucose?

A bond that connects the acid end of one amino acid with the amino end of another, forming a link in a protein chain, is called a "________."

Which term refers to the change in a protein's shape due to the application of heat or acid?

An Overview of Nutrition

Planning a Healthy Diet

Digestion, Absorption, and Transport

The Carbohydrates: Sugar, Starches, and Fibers

The Lipids: Triglycerides, Phospholipids, and Sterols

Energy Metabolism

Energy Balance and Body Composition

Weight Management: Overweight, Obesity, and Underweight

The Water-Soluble Vitamins: B Vitamins and Vitamin C

The Fat-Soluble Vitamins: A, D, E, and K

Water and the Major Minerals

The Trace Minerals

Life Cycle Nutrition: Pregnancy and Lactation

Life Cycle Nutrition: Infancy, Childhood, and Adolescence

Life Cycle Nutrition: Adulthood and the Later Years

Nutrition Care and Assessment

Nutrition Intervention

Medications, Diet-Drug Interactions, and Herbal Products

Enteral Nutrition Support

Parenteral Nutrition Support

Metabolic and Respiratory Stress

Upper Gastrointestinal Disorders

Lower Gastrointestinal Disorders

Liver Disease and Gallstones

Diabetes Mellitus

Cardiovascular Diseases

Kidney Diseases

Cancer and Hiv Infection

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