Question 1

What is the most likely reason for the development of a vitamin B12 deficiency?

Accepted Answer

A) Inadequate intake 
B) Increased excretion 
C) Inadequate absorption 
D) Increased losses in food preparation 
A) Inadequate intake 
B) Increased excretion 
C) Inadequate absorption 
D) Increased losses in food preparation C

Question 2

What term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of nicotinic acid?

Accepted Answer

A) Niacin flush 
B) NAD dermatitis 
C) Niacin erythrema 
D) Bilateral symmetrical dermatitis 
A) Niacin flush 
B) NAD dermatitis 
C) Niacin erythrema 
D) Bilateral symmetrical dermatitis A

Question 3

Which of the following foods provides ample amounts of vitamin C?

Accepted Answer

A) Tofu 
B) Yogurt 
C) Legumes 
D) Broccoli 
A) Tofu 
B) Yogurt 
C) Legumes 
D) Broccoli D

Question 4

Which of the following vitamins is involved substantially in energy transformation reactions?

Accepted Answer

A) Biotin 
B) Cobalamin 
C) Riboflavin 
D) Pyridoxine 
A) Biotin 
B) Cobalamin 
C) Riboflavin 
D) Pyridoxine

Question 5

What is the adult Adequate Intake for biotin?

Accepted Answer

A) 3 µg 
B) 30 µg 
C) 3 mg 
D) 30 mg 
A) 3 µg 
B) 30 µg 
C) 3 mg 
D) 30 mg

Question 6

Which of the following is a property of thiamin nutrition?

Accepted Answer

A) Participates in activation of prothrombin 
B) Poor sources include seafood and cheeses 
C) Significant amounts are found in leafy vegetables 
D) Deficiency results in cheilosis and marked dermatitis 
A) Participates in activation of prothrombin 
B) Poor sources include seafood and cheeses 
C) Significant amounts are found in leafy vegetables 
D) Deficiency results in cheilosis and marked dermatitis

Question 7

Which of the following represents the results of well-controlled studies of vitamin C supplementation on the resistance to, and recovery from, colds?

Accepted Answer

A) There was a reduction in the duration of colds by 50% on the average 
B) There was only a minor effect on reducing the number and severity of colds 
C) There was a significant reduction in the duration of colds in people who consumed at least one gram a day 
D) There was a significant reduction in the number of colds only in people who consumed more than three grams per day 
A) There was a reduction in the duration of colds by 50% on the average 
B) There was only a minor effect on reducing the number and severity of colds 
C) There was a significant reduction in the duration of colds in people who consumed at least one gram a day 
D) There was a significant reduction in the number of colds only in people who consumed more than three grams per day

Question 8

What term is used to describe the outcome of a diagnostic test that apparently shows that you have mononucleosis when in reality you do not?

Accepted Answer

A) True positive 
B) True negative 
C) False positive 
D) False negative 
A) True positive 
B) True negative 
C) False positive 
D) False negative

Question 9

Of the following foods, which would be the only source of vitamin B12?

Accepted Answer

A) Pecans 
B) Hot dog 
C) Cauliflower 
D) Whole-grain bread 
A) Pecans 
B) Hot dog 
C) Cauliflower 
D) Whole-grain bread

Question 10

What is the primary excretory route for the water-soluble vitamins?

Accepted Answer

A) Bile 
B) Kidney 
C) Intestine 
D) Perspiration 
A) Bile 
B) Kidney 
C) Intestine 
D) Perspiration

Question 11

Which of the following is a characteristic of vitamin B12?

Accepted Answer

A) Toxicity symptoms are serious and irreversible 
B) Units in food are expressed as cobalamin equivalents 
C) It is inactivated when the food is heated in a microwave 
D) Bioavailable amounts are found in fermented soy products 
A) Toxicity symptoms are serious and irreversible 
B) Units in food are expressed as cobalamin equivalents 
C) It is inactivated when the food is heated in a microwave 
D) Bioavailable amounts are found in fermented soy products

Question 12

Which of the following substances is found in corn and contributes to the development of pellagra?

Accepted Answer

A) Avidin 
B) Leucine 
C) Phytates 
D) Phenylalanine 
A) Avidin 
B) Leucine 
C) Phytates 
D) Phenylalanine

Question 13

In what capacity does vitamin C function?

Accepted Answer

A) Coenzyme for energy release 
B) Cofactor in collagen formation 
C) Cofactor with calcium in blood coagulation 
D) Coenzyme in the formation of red blood cells 
A) Coenzyme for energy release 
B) Cofactor in collagen formation 
C) Cofactor with calcium in blood coagulation 
D) Coenzyme in the formation of red blood cells

Question 14

Which of the following is not a feature of folate nutrition?

Accepted Answer

A) Most food folate is bound to a string of amino acids 
B) Folate is actively secreted back into the GI tract with bile 
C) Food folate must be hydrolyzed by intestinal cell enzymes prior to absorption 
D) Folate must be methylated by homocysteine prior to crossing the brush border membrane 
A) Most food folate is bound to a string of amino acids 
B) Folate is actively secreted back into the GI tract with bile 
C) Food folate must be hydrolyzed by intestinal cell enzymes prior to absorption 
D) Folate must be methylated by homocysteine prior to crossing the brush border membrane

Question 15

Which of the following vitamins is synthesized by intestinal bacteria?

Accepted Answer

A) Folate 
B) Biotin 
C) Cyanocobalamin 
D) Pantothenic acid 
A) Folate 
B) Biotin 
C) Cyanocobalamin 
D) Pantothenic acid

Question 16

Which of the following vitamins is known to deactivate histamine, a substance that causes nasal congestion?

Accepted Answer

A) Niacin 
B) Vitamin E 
C) Vitamin C 
D) Vitamin B12 
A) Niacin 
B) Vitamin E 
C) Vitamin C 
D) Vitamin B12

Question 17

Which of the following is a property of vitamin B12?

Accepted Answer

A) It is efficiently recycled by the body 
B) It is necessary for protection from pinpoint hemorrhages 
C) It requires attachment to fatty acids for transport in the circulation 
D) It is absorbed from the stomach with the aid of a special binding protein 
A) It is efficiently recycled by the body 
B) It is necessary for protection from pinpoint hemorrhages 
C) It requires attachment to fatty acids for transport in the circulation 
D) It is absorbed from the stomach with the aid of a special binding protein

Question 18

How much vitamin C is needed daily to raise blood ascorbic acid concentrations to a maximum?

Accepted Answer

A) 10 mg 
B) 75 mg 
C) 125 mg 
D) 200 mg 
A) 10 mg 
B) 75 mg 
C) 125 mg 
D) 200 mg

Question 19

A low-protein diet in which corn is a principal food has been found to cause a deficiency of what vitamin?

Accepted Answer

A) Niacin 
B) Thiamin 
C) Vitamin C 
D) Vitamin B12 
A) Niacin 
B) Thiamin 
C) Vitamin C 
D) Vitamin B12

Question 20

Which of the following vitamins undergoes significant enterohepatic circulation?

Accepted Answer

A) Folate 
B) Niacin 
C) Thiamin 
D) Pyridoxine 
A) Folate 
B) Niacin 
C) Thiamin 
D) Pyridoxine

Exam 10: The Water-Soluble Vitamins: B Vitamins and Vitamin C

What is the most likely reason for the development of a vitamin B12 deficiency?

What term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of nicotinic acid?

Which of the following foods provides ample amounts of vitamin C?

Which of the following vitamins is involved substantially in energy transformation reactions?

What is the adult Adequate Intake for biotin?

Which of the following is a property of thiamin nutrition?

Which of the following represents the results of well-controlled studies of vitamin C supplementation on the resistance to, and recovery from, colds?

What term is used to describe the outcome of a diagnostic test that apparently shows that you have mononucleosis when in reality you do not?

Of the following foods, which would be the only source of vitamin B12?

What is the primary excretory route for the water-soluble vitamins?

Which of the following is a characteristic of vitamin B12?

Which of the following substances is found in corn and contributes to the development of pellagra?

In what capacity does vitamin C function?

Which of the following is not a feature of folate nutrition?

Which of the following vitamins is synthesized by intestinal bacteria?

Which of the following vitamins is known to deactivate histamine, a substance that causes nasal congestion?

Which of the following is a property of vitamin B12?

How much vitamin C is needed daily to raise blood ascorbic acid concentrations to a maximum?

A low-protein diet in which corn is a principal food has been found to cause a deficiency of what vitamin?

Which of the following vitamins undergoes significant enterohepatic circulation?

An Overview of Nutrition

Planning a Healthy Diet

Digestion, Absorption, and Transport

The Carbohydrates: Sugars, Starches and Fibers

The Lipids: Triglycerides, Phospholipids, and Sterols

Protein: Amino Acids

Metabolism: Transformations and Interactions

Energy Balance and Body Composition

Weight Management: Overweight, Obesity, and Underweight

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

Filters

What is the most likely reason for the development of a vitamin B₁₂ deficiency?

Of the following foods, which would be the only source of vitamin B₁₂?

Which of the following is a characteristic of vitamin B₁₂?

Which of the following is a property of vitamin B₁₂?