Question 1

Which of the following may be used to determine protein utilization?

Accepted Answer

A) Calorimetry 
B) Nitrogen balance 
C) Amino acid pool 
D) Supplementary value 
A) Calorimetry 
B) Nitrogen balance 
C) Amino acid pool 
D) Supplementary value

Question 2

When two amino acids are chemically joined together,the resulting structure is called a

Accepted Answer

A) dipeptide. 
B) diglyceride. 
C) polypeptide. 
D) disaccharide. 
A) dipeptide. 
B) diglyceride. 
C) polypeptide. 
D) disaccharide.

Question 3

Which of the following is NOT considered to be a source of high-quality protein in human nutrition?

Accepted Answer

A) Soy 
B) Egg 
C) Corn 
D) Fish 
A) Soy 
B) Egg 
C) Corn 
D) Fish

Question 4

What term signifies when a cell makes a protein under the directions of a gene?

Accepted Answer

A) Gene encoding 
B) Gene expression 
C) Protein secretion 
D) Protein amplification 
A) Gene encoding 
B) Gene expression 
C) Protein secretion 
D) Protein amplification

Question 5

Which of the following would be classified as a polypeptide?

Accepted Answer

A) 1 amino acid 
B) 3 amino acids bonded together 
C) 9 fatty acids bonded together 
D) 20 amino acids bonded together 
A) 1 amino acid 
B) 3 amino acids bonded together 
C) 9 fatty acids bonded together 
D) 20 amino acids bonded together

Question 6

What amino acid is used to synthesize the neurotransmitter serotonin and the vitamin niacin?

Accepted Answer

A) Glycine 
B) Tyrosine 
C) Methionine 
D) Tryptophan 
A) Glycine 
B) Tyrosine 
C) Methionine 
D) Tryptophan

Question 7

What is the range of daily protein intake,in g/kg,recommended for athletes by fitness authorities?

Accepted Answer

A) 0.8-1.1 
B) 1.2-1.7 
C) 1.8-2.4 
D) 2.5-3.0 
A) 0.8-1.1 
B) 1.2-1.7 
C) 1.8-2.4 
D) 2.5-3.0

Question 8

Which of the following is NOT among the characteristics of phenylketonuria?

Accepted Answer

A) It is a single-gene disorder 
B) It leads to a dietary requirement for tyrosine 
C) It is treated by total elimination of dietary phenylalanine 
D) It results in mental retardation unless treatment is started in infancy 
A) It is a single-gene disorder 
B) It leads to a dietary requirement for tyrosine 
C) It is treated by total elimination of dietary phenylalanine 
D) It results in mental retardation unless treatment is started in infancy

Question 9

Which of the following is related to the quality of a food protein?

Accepted Answer

A) Essential amino acid balance 
B) Nonessential amino acid balance 
C) Total amino acids per gram of food 
D) Quantity of nonessential amino acids that can be converted to glucose 
A) Essential amino acid balance 
B) Nonessential amino acid balance 
C) Total amino acids per gram of food 
D) Quantity of nonessential amino acids that can be converted to glucose

Question 10

Which of the following elements is found in certain amino acids?

Accepted Answer

A) Iron 
B) Sulfur 
C) Calcium 
D) Potassium 
A) Iron 
B) Sulfur 
C) Calcium 
D) Potassium

Question 11

A common genetic variation which causes a change in the amino acid sequence in the structure of hemoglobin leads to the disease

Accepted Answer

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

Question 12

What element is found in proteins but NOT in carbohydrates and fats?

Accepted Answer

A) Carbon 
B) Oxygen 
C) Calcium 
D) Nitrogen 
A) Carbon 
B) Oxygen 
C) Calcium 
D) Nitrogen

Question 13

The process whereby messenger RNA is made from a DNA template is

Accepted Answer

A) expression. 
B) sequencing. 
C) transcription. 
D) ribosome assembly. 
A) expression. 
B) sequencing. 
C) transcription. 
D) ribosome assembly.

Question 14

If the diet is lacking an essential amino acid,what will be the course of action?

Accepted Answer

A) Body cells will synthesize it 
B) Protein synthesis will be limited 
C) Health will not be affected as long as other nutrients are adequate 
D) Proteins will be made but they will lack that particular amino acid 
A) Body cells will synthesize it 
B) Protein synthesis will be limited 
C) Health will not be affected as long as other nutrients are adequate 
D) Proteins will be made but they will lack that particular amino acid

Question 15

What percentage of dietary protein is hydrolyzed in the mouth?

Accepted Answer

A) 0 
B) 5-10 
C) 15-20 
D) 25-30 
A) 0 
B) 5-10 
C) 15-20 
D) 25-30

Question 16

The function of a protease is to

Accepted Answer

A) hydrolyze proteins. 
B) synthesize proteins. 
C) hydrolyze ribosomes. 
D) synthesize ribosomes. 
A) hydrolyze proteins. 
B) synthesize proteins. 
C) hydrolyze ribosomes. 
D) synthesize ribosomes.

Question 17

Which of the following compounds does NOT contain nitrogen?

Accepted Answer

A) Urea 
B) Enzymes 
C) Ammonia 
D) Cholesterol 
A) Urea 
B) Enzymes 
C) Ammonia 
D) Cholesterol

Question 18

The weak electrical attractions within polypeptide chains account for the protein's

Accepted Answer

A) primary structure. 
B) secondary structure. 
C) tertiary structure. 
D) quaternary structure. 
A) primary structure. 
B) secondary structure. 
C) tertiary structure. 
D) quaternary structure.

Question 19

Which of the following statements is NOT characteristic of enzymes?

Accepted Answer

A) They are all catalysts 
B) They have a protein structure 
C) They can be destroyed by heat 
D) They are involved in synthesis reactions only 
A) They are all catalysts 
B) They have a protein structure 
C) They can be destroyed by heat 
D) They are involved in synthesis reactions only

Question 20

What is the most likely reason for having an abnormally high blood urea level?

Accepted Answer

A) Liver dysfunction 
B) Kidney dysfunction 
C) Protein intake twice the RDA 
D) Protein intake one-tenth the RDA 
A) Liver dysfunction 
B) Kidney dysfunction 
C) Protein intake twice the RDA 
D) Protein intake one-tenth the RDA

Which of the following may be used to determine protein utilization?

When two amino acids are chemically joined together,the resulting structure is called a

Which of the following is NOT considered to be a source of high-quality protein in human nutrition?

What term signifies when a cell makes a protein under the directions of a gene?

Which of the following would be classified as a polypeptide?

What amino acid is used to synthesize the neurotransmitter serotonin and the vitamin niacin?

What is the range of daily protein intake,in g/kg,recommended for athletes by fitness authorities?

Which of the following is NOT among the characteristics of phenylketonuria?

Which of the following is related to the quality of a food protein?

Which of the following elements is found in certain amino acids?

A common genetic variation which causes a change in the amino acid sequence in the structure of hemoglobin leads to the disease

What element is found in proteins but NOT in carbohydrates and fats?

The process whereby messenger RNA is made from a DNA template is

If the diet is lacking an essential amino acid,what will be the course of action?

What percentage of dietary protein is hydrolyzed in the mouth?

The function of a protease is to

Which of the following compounds does NOT contain nitrogen?

The weak electrical attractions within polypeptide chains account for the protein's

Which of the following statements is NOT characteristic of enzymes?

What is the most likely reason for having an abnormally high blood urea level?

An Overview of Nutrition

Planning a Healthy Diet

Digestion, absorption, and Transport

The Carbohydrates: Sugars, 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

Fitness: Physical Activity, nutrients, and Body Adaptations

Life Cycle Nutrition: Pregnancy and Lactation

Life Cycle Nutrition: Infancy, childhood, and Adolescence

Life Cycle Nutrition: Adulthood and the Later Years

Diet and Health

Consumer Concerns About Foods and Water

Hunger and the Global Environment

Filters

Exam 6: Protein: Amino Acids

Which of the following may be used to determine protein utilization?

When two amino acids are chemically joined together,the resulting structure is called a

Which of the following is NOT considered to be a source of high-quality protein in human nutrition?

What term signifies when a cell makes a protein under the directions of a gene?

Which of the following would be classified as a polypeptide?

What amino acid is used to synthesize the neurotransmitter serotonin and the vitamin niacin?

What is the range of daily protein intake,in g/kg,recommended for athletes by fitness authorities?

Which of the following is NOT among the characteristics of phenylketonuria?

Which of the following is related to the quality of a food protein?

Which of the following elements is found in certain amino acids?

A common genetic variation which causes a change in the amino acid sequence in the structure of hemoglobin leads to the disease

What element is found in proteins but NOT in carbohydrates and fats?

The process whereby messenger RNA is made from a DNA template is

If the diet is lacking an essential amino acid,what will be the course of action?

What percentage of dietary protein is hydrolyzed in the mouth?

The function of a protease is to

Which of the following compounds does NOT contain nitrogen?

The weak electrical attractions within polypeptide chains account for the protein's

Which of the following statements is NOT characteristic of enzymes?

What is the most likely reason for having an abnormally high blood urea level?

An Overview of Nutrition

Planning a Healthy Diet

Digestion, absorption, and Transport

The Carbohydrates: Sugars, 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

Fitness: Physical Activity, nutrients, and Body Adaptations

Life Cycle Nutrition: Pregnancy and Lactation

Life Cycle Nutrition: Infancy, childhood, and Adolescence

Life Cycle Nutrition: Adulthood and the Later Years

Diet and Health

Consumer Concerns About Foods and Water

Hunger and the Global Environment

Filters