Question 1

Examine the following structure.   If the polymer shown in the diagram is hydrolyzed into its monomers, this process would represent which of the following?

Accepted Answer

A)  protein metabolism 
B)  lipid metabolism 
C)  fatty acid metabolism 
D)  carbohydrate metabolism 
A)  protein metabolism 
B)  lipid metabolism 
C)  fatty acid metabolism 
D)  carbohydrate metabolism

Question 2

Which of the following statements is true of lipases?

Accepted Answer

A)  They hydrolyze lipids. 
B)  They are mostly found in the stomach. 
C)  They hydrolyze lipids and they are mostly found in the stomach. 
D)  None of these 
A)  They hydrolyze lipids. 
B)  They are mostly found in the stomach. 
C)  They hydrolyze lipids and they are mostly found in the stomach. 
D)  None of these

Question 3

Which of the following statements is true of animal proteins?

Accepted Answer

A)  All of them are complete proteins. 
B)  All of them are incomplete proteins. 
C)  Most of them are complete proteins. 
D)  Most of them are incomplete proteins. 
A)  All of them are complete proteins. 
B)  All of them are incomplete proteins. 
C)  Most of them are complete proteins. 
D)  Most of them are incomplete proteins.

Question 4

In addition to the water contained in foods, approximately how much water should a person drink per day?

Accepted Answer

A)  200 to 300 mL 
B)  1200 to 1500 mL 
C)  1500 to 2000 mL 
D)  600 to 700 mL 
A)  200 to 300 mL 
B)  1200 to 1500 mL 
C)  1500 to 2000 mL 
D)  600 to 700 mL

Question 5

Identify a function of vitamin C.

Accepted Answer

A)  wound healing 
B)  osmoregulation 
C)  fatty acid synthesis 
D)  carbohydrate metabolism 
A)  wound healing 
B)  osmoregulation 
C)  fatty acid synthesis 
D)  carbohydrate metabolism

Question 6

Which of the following types of biomolecules does gluten consist of?

Accepted Answer

A)  carbohydrates 
B)  proteins 
C)  vitamins 
D)  fats 
A)  carbohydrates 
B)  proteins 
C)  vitamins 
D)  fats

Question 7

In diabetic women, which of the following vitamin supplementations is correlated with lowered depression risk and is thought to decrease insulin resistance?

Accepted Answer

A)  omega unsaturated fatty acid supplementation 
B)  vitamin C supplementation 
C)  vitamin D supplementation 
D)  vitamin B12 supplementation 
E)  none of these 
A)  omega unsaturated fatty acid supplementation 
B)  vitamin C supplementation 
C)  vitamin D supplementation 
D)  vitamin B12 supplementation 
E)  none of these

Question 8

Which equation represents the relationship between the units Cal and cal?

Accepted Answer

A)  1 cal = 100 Cal 
B)  1 cal = 1000 Cal 
C)  1 Cal = 100 cal 
D)  1 Cal = 1000 cal 
A)  1 cal = 100 Cal 
B)  1 cal = 1000 Cal 
C)  1 Cal = 100 cal 
D)  1 Cal = 1000 cal

Question 9

Which of the following parameters is used by the National Institutes of Health to define obesity?

Accepted Answer

A)  body weight 
B)  body mass index 
C)  total body fat 
D)  none of these 
A)  body weight 
B)  body mass index 
C)  total body fat 
D)  none of these

Question 10

Which of the following enzymes hydrolyzes peptide bonds at the carboxyl side of tryptophan, phenylalanine, or tyrosine?

Accepted Answer

A)  carboxypeptidase 
B)  chymotrypsin 
C)  pepsin 
D)  trypsin 
A)  carboxypeptidase 
B)  chymotrypsin 
C)  pepsin 
D)  trypsin

Question 11

Which of the following sugars is obtained by the complete hydrolysis of starch?

Accepted Answer

A)  fructose 
B)  lactose 
C)  glucose 
D)  sucrose 
A)  fructose 
B)  lactose 
C)  glucose 
D)  sucrose

Question 12

Which of the following statements is true of denatured proteins?

Accepted Answer

A)  They are converted to their native protein forms by proteolytic enzymes. 
B)  They are the indigestible forms of native proteins 
C)  They are broken down into their constituent amino acids in the stomach. 
D)  They are more easily hydrolyzed by HCl than their native forms are. 
A)  They are converted to their native protein forms by proteolytic enzymes. 
B)  They are the indigestible forms of native proteins 
C)  They are broken down into their constituent amino acids in the stomach. 
D)  They are more easily hydrolyzed by HCl than their native forms are.

Question 13

Why did the USDA revise its 1992 Food Guide Pyramid?

Accepted Answer

A)  because new data suggested that the 1992 pyramid was too simplistic 
B)  because research showed little evidence to support the claim that high carbohydrate intake is beneficial 
C)  because the 1992 pyramid glorified carbohydrates while casting all fats as the "bad guys" 
D)  for all of these reasons 
A)  because new data suggested that the 1992 pyramid was too simplistic 
B)  because research showed little evidence to support the claim that high carbohydrate intake is beneficial 
C)  because the 1992 pyramid glorified carbohydrates while casting all fats as the "bad guys" 
D)  for all of these reasons

Question 14

Which of the following is not true?

Accepted Answer

A)  The body can metabolize excess protein to fat. 
B)  Protein has no specific storage form of its own. 
C)  Protein must be consumed on a regular basis. 
D)  None, these are all true. 
A)  The body can metabolize excess protein to fat. 
B)  Protein has no specific storage form of its own. 
C)  Protein must be consumed on a regular basis. 
D)  None, these are all true.

Question 15

What is the definition of a complete protein?

Accepted Answer

A)  a dietary protein that can be used directly 
B)  a dietary protein that contains all 10 essential amino acids 
C)  a dietary protein that contains all 20 amino acids 
D)  a protein that has attained its functional three-dimensional structure 
A)  a dietary protein that can be used directly 
B)  a dietary protein that contains all 10 essential amino acids 
C)  a dietary protein that contains all 20 amino acids 
D)  a protein that has attained its functional three-dimensional structure

Question 16

Why is creatine not considered equivalent to banned anabolic steroids?

Accepted Answer

A)  because it is a natural amino acid found in muscles 
B)  because it is an essential natural amino acid found associated with proteins 
C)  because it can stimulate the central nervous system 
D)  for all of these reasons 
A)  because it is a natural amino acid found in muscles 
B)  because it is an essential natural amino acid found associated with proteins 
C)  because it can stimulate the central nervous system 
D)  for all of these reasons

Question 17

Which of the following hydrolyzes proteins only on the amino side of tryptophan, phenylalanine, and tyrosine?

Accepted Answer

A)  carboxypeptidase 
B)  pepsin 
C)  trypsin 
D)  none of these 
A)  carboxypeptidase 
B)  pepsin 
C)  trypsin 
D)  none of these

Question 18

Which of the following correctly describes how bottled water and public water supplies are purified?

Accepted Answer

A)  Both are usually purified using X-rays. 
B)  Both are usually purified using ozone. 
C)  Bottled water is usually purified using chlorine, but public water supplies are usually purified using X-rays. 
D)  Bottled water is usually purified using ozone, but public water supplies are usually purified using chlorine. 
A)  Both are usually purified using X-rays. 
B)  Both are usually purified using ozone. 
C)  Bottled water is usually purified using chlorine, but public water supplies are usually purified using X-rays. 
D)  Bottled water is usually purified using ozone, but public water supplies are usually purified using chlorine.

Question 19

Examine the following structure.   Consider the hydrolysis reaction catalyzed by the enzyme carboxypeptidase. Which location in the diagram represented by a letter would be the site of this type of hydrolysis?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  Hydrolysis could occur at any of the indicated points. 
A)  A 
B)  B 
C)  C 
D)  D 
E)  Hydrolysis could occur at any of the indicated points.

Question 20

Which of the following mineral deficiencies leads to goiter?

Accepted Answer

A)  copper deficiency 
B)  iodine deficiency 
C)  iron deficiency 
D)  zinc deficiency 
A)  copper deficiency 
B)  iodine deficiency 
C)  iron deficiency 
D)  zinc deficiency

Exam 29: Nutrition

Examine the following structure. If the polymer shown in the diagram is hydrolyzed into its monomers, this process would represent which of the following?

Which of the following statements is true of lipases?

Which of the following statements is true of animal proteins?

In addition to the water contained in foods, approximately how much water should a person drink per day?

Identify a function of vitamin C.

Which of the following types of biomolecules does gluten consist of?

In diabetic women, which of the following vitamin supplementations is correlated with lowered depression risk and is thought to decrease insulin resistance?

Which equation represents the relationship between the units Cal and cal?

Which of the following parameters is used by the National Institutes of Health to define obesity?

Which of the following enzymes hydrolyzes peptide bonds at the carboxyl side of tryptophan, phenylalanine, or tyrosine?

Which of the following sugars is obtained by the complete hydrolysis of starch?

Which of the following statements is true of denatured proteins?

Why did the USDA revise its 1992 Food Guide Pyramid?

Which of the following is not true?

What is the definition of a complete protein?

Why is creatine not considered equivalent to banned anabolic steroids?

Which of the following hydrolyzes proteins only on the amino side of tryptophan, phenylalanine, and tyrosine?

Which of the following correctly describes how bottled water and public water supplies are purified?

Examine the following structure. Consider the hydrolysis reaction catalyzed by the enzyme carboxypeptidase. Which location in the diagram represented by a letter would be the site of this type of hydrolysis?

Which of the following mineral deficiencies leads to goiter?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Immunochemistry

Body Fluids

Filters