Question 1

In what major way does alcohol intake affect vitamin B6 metabolism?

Accepted Answer

A) It reduces acetaldehyde formation 
B) It increases fecal excretion of the vitamin 
C) It dislodges the PLP coenzyme from its enzyme 
D) It interferes with synthesis of the PLP coenzyme 
A) It reduces acetaldehyde formation 
B) It increases fecal excretion of the vitamin 
C) It dislodges the PLP coenzyme from its enzyme 
D) It interferes with synthesis of the PLP coenzyme

Question 2

Which of the following contains the highest concentration of thiamin in muscle tissue?

Accepted Answer

A) Pig 
B) Fish 
C) Steer 
D) Chicken 
A) Pig 
B) Fish 
C) Steer 
D) Chicken

Question 3

Which of the following substances is known to adversely affect folate utilization?

Accepted Answer

A) Insulin 
B) Calcium supplements 
C) Regular use of antacids 
D) Vitamin B12 supplements 
A) Insulin 
B) Calcium supplements 
C) Regular use of antacids 
D) Vitamin B12 supplements

Question 4

The Wernicke-Korsakoff syndrome may be treated with supplements of

Accepted Answer

A) folacin. 
B) thiamin. 
C) vitamin C. 
D) vitamin B12. 
A) folacin. 
B) thiamin. 
C) vitamin C. 
D) vitamin B12.

Question 5

A common drug for the treatment of tuberculosis is known to markedly interfere in the metabolism of vitamin

Accepted Answer

A) B6. 
B) B12. 
C) C. 
D) D. 
A) B6. 
B) B12. 
C) C. 
D) D.

Question 6

All of the following are required for efficient dietary absorption of vitamin B12 except

Accepted Answer

A) pepsin. 
B) intrinsic factor. 
C) hydrochloric acid. 
D) mucosal cobalaminase. 
A) pepsin. 
B) intrinsic factor. 
C) hydrochloric acid. 
D) mucosal cobalaminase.

Question 7

Your friend Jane just returned from the doctor who diagnosed her with a specific vitamin B toxicity.However, she doesn't recall the name of the vitamin.Which of the following is the only possible culprit associated with toxicity symptoms?

Accepted Answer

A) Niacin 
B) Biotin 
C) Riboflavin 
D) Vitamin B12 
A) Niacin 
B) Biotin 
C) Riboflavin 
D) Vitamin B12

Question 8

A deficiency of what vitamin produces a characteristic cracking and redness at the corners of the mouth?

Accepted Answer

A) Biotin 
B) Niacin 
C) Riboflavin 
D) Ascorbic acid 
A) Biotin 
B) Niacin 
C) Riboflavin 
D) Ascorbic acid

Question 9

What is ariboflavonosis?

Accepted Answer

A) The vitamin B2 deficiency disease 
B) Food sources devoid of vitamin B2 
C) Ultraviolet destruction of vitamin B2 
D) Excessive heat destruction of vitamin B2 
A) The vitamin B2 deficiency disease 
B) Food sources devoid of vitamin B2 
C) Ultraviolet destruction of vitamin B2 
D) Excessive heat destruction of vitamin B2

Question 10

Which of the following is not known to be a risk factor for development of atrophic gastritis?

Accepted Answer

A) Age over 50 yrs 
B) Iron deficiency 
C) Helicobacter pylori infection 
D) Avoidance of leafy vegetables 
A) Age over 50 yrs 
B) Iron deficiency 
C) Helicobacter pylori infection 
D) Avoidance of leafy vegetables

Question 11

Which of the following overt side effect(s) is likely to appear after a person ingests a high quantity of nicotinic acid?

Accepted Answer

A) Constipation 
B) Mental confusion 
C) Painful, tingling, itching sensation 
D) Hair loss, bloating, and photophobia 
A) Constipation 
B) Mental confusion 
C) Painful, tingling, itching sensation 
D) Hair loss, bloating, and photophobia

Question 12

What food makes a significant contribution to vitamin C intakes in the U.S.population despite the modest vitamin C concentration?

Accepted Answer

A) Potatoes 
B) Organ meats 
C) Breaded fish 
D) Whole-grain cereals 
A) Potatoes 
B) Organ meats 
C) Breaded fish 
D) Whole-grain cereals

Question 13

Which of the following would be the poorest dietary source of vitamin C?

Accepted Answer

A) Liver 
B) Potatoes 
C) Whole grains 
D) Cruciferous vegetables 
A) Liver 
B) Potatoes 
C) Whole grains 
D) Cruciferous vegetables

Question 14

Which of the following is required for the absorption of dietary vitamin B12?

Accepted Answer

A) Bile 
B) Lipase 
C) Intrinsic factor 
D) Carboxypeptidase 
A) Bile 
B) Lipase 
C) Intrinsic factor 
D) Carboxypeptidase

Question 15

A protein that binds with biotin (thus inhibiting absorption) is found in which food?

Accepted Answer

A) Aged cheese 
B) Raw egg whites 
C) Whole wheat bread 
D) Unhomogenized milk 
A) Aged cheese 
B) Raw egg whites 
C) Whole wheat bread 
D) Unhomogenized milk

Question 16

What is a precursor?

Accepted Answer

A) A conditionally essential vitamin 
B) A sign or symptom of a vitamin deficiency disorder 
C) A substance that is used to synthesize another compound 
D) A substance that is recycled through the liver and intestines 
A) A conditionally essential vitamin 
B) A sign or symptom of a vitamin deficiency disorder 
C) A substance that is used to synthesize another compound 
D) A substance that is recycled through the liver and intestines

Question 17

The adult RDA for vitamin B12 (µg) is

Accepted Answer

A) 0.5. 
B) 1.25. 
C) 2.4. 
D) 4.0. 
A) 0.5. 
B) 1.25. 
C) 2.4. 
D) 4.0.

Question 18

By law, what amount of folate (µg) must be added to 100 g of food products such as breads, flour, and rice?

Accepted Answer

A) 5 
B) 50 
C) 100 
D) 140 
A) 5 
B) 50 
C) 100 
D) 140

Question 19

Because of adverse interactions with other vitamins, a safe daily folate intake is up to

Accepted Answer

A) 400 µg. 
B) 600 µg. 
C) 1,000 µg. 
D) 2,000 µg. 
A) 400 µg. 
B) 600 µg. 
C) 1,000 µg. 
D) 2,000 µg.

Question 20

What vitamin forms a part of coenzyme A?

Accepted Answer

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

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

In what major way does alcohol intake affect vitamin B6 metabolism?

Which of the following contains the highest concentration of thiamin in muscle tissue?

Which of the following substances is known to adversely affect folate utilization?

The Wernicke-Korsakoff syndrome may be treated with supplements of

A common drug for the treatment of tuberculosis is known to markedly interfere in the metabolism of vitamin

All of the following are required for efficient dietary absorption of vitamin B12 except

Your friend Jane just returned from the doctor who diagnosed her with a specific vitamin B toxicity.However, she doesn't recall the name of the vitamin.Which of the following is the only possible culprit associated with toxicity symptoms?

A deficiency of what vitamin produces a characteristic cracking and redness at the corners of the mouth?

What is ariboflavonosis?

Which of the following is not known to be a risk factor for development of atrophic gastritis?

Which of the following overt side effect(s) is likely to appear after a person ingests a high quantity of nicotinic acid?

What food makes a significant contribution to vitamin C intakes in the U.S.population despite the modest vitamin C concentration?

Which of the following would be the poorest dietary source of vitamin C?

Which of the following is required for the absorption of dietary vitamin B12?

A protein that binds with biotin (thus inhibiting absorption) is found in which food?

What is a precursor?

The adult RDA for vitamin B12 (µg) is

By law, what amount of folate (µg) must be added to 100 g of food products such as breads, flour, and rice?

Because of adverse interactions with other vitamins, a safe daily folate intake is up to

What vitamin forms a part of coenzyme A?

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

In what major way does alcohol intake affect vitamin B₆ metabolism?

All of the following are required for efficient dietary absorption of vitamin B₁₂ except

Which of the following is required for the absorption of dietary vitamin B₁₂?

The adult RDA for vitamin B₁₂ (µg) is