Question 1

Riboflavin in its coenzyme form functions in the transfer of

Accepted Answer

A) methyl groups. 
B) 1-carbon units. 
C) 2-carbon units. 
D) hydrogen atoms. 
A) methyl groups. 
B) 1-carbon units. 
C) 2-carbon units. 
D) hydrogen atoms.

Question 2

A similar type of anemia is produced when there is a deficiency of either

Accepted Answer

A) riboflavin or niacin. 
B) vitamin B12 or folate. 
C) thiamin or riboflavin. 
D) vitamin B6 or vitamin B12. 
A) riboflavin or niacin. 
B) vitamin B12 or folate. 
C) thiamin or riboflavin. 
D) vitamin B6 or vitamin B12.

Question 3

All of the following are general characteristics of the fat-soluble vitamins except

Accepted Answer

A) excesses are eliminated from the kidneys. 
B) absorption is via the lymphatic circulation. 
C) several of them require protein carriers for transport. 
D) they can be stored in relatively large amounts in certain body tissues. 
A) excesses are eliminated from the kidneys. 
B) absorption is via the lymphatic circulation. 
C) several of them require protein carriers for transport. 
D) they can be stored in relatively large amounts in certain body tissues.

Question 4

Which of the following is probably required in the diet of human beings?

Accepted Answer

A) Choline 
B) Inositol 
C) Lipoic acid 
D) Pangamic acid 
A) Choline 
B) Inositol 
C) Lipoic acid 
D) Pangamic acid

Question 5

Moderate intakes of which of the following would provide sufficient amounts of vitamin C?

Accepted Answer

A) Potatoes 
B) Brown rice 
C) Low-fat milk 
D) Whole-wheat bread 
A) Potatoes 
B) Brown rice 
C) Low-fat milk 
D) Whole-wheat bread

Question 6

A deficiency of which of the following vitamins results in accumulation of homocysteine in the blood?

Accepted Answer

A) Folate 
B) Biotin 
C) Niacin 
D) Vitamin K 
A) Folate 
B) Biotin 
C) Niacin 
D) Vitamin K

Question 7

What is a free radical?

Accepted Answer

A) An inactive vitamin 
B) An unphosphorylated vitamin 
C) A molecule of unbound cobalamins 
D) A molecule with at least one unpaired electron 
A) An inactive vitamin 
B) An unphosphorylated vitamin 
C) A molecule of unbound cobalamins 
D) A molecule with at least one unpaired electron

Question 8

Which of the following food groups ordinarily contains the highest amount of riboflavin when expressed per kcalorie?

Accepted Answer

A) Dairy 
B) Meats 
C) Fruits 
D) Vegetables 
A) Dairy 
B) Meats 
C) Fruits 
D) Vegetables

Question 9

In a person who loses the ability to absorb vitamin B12, approximately what period of time could elapse before deficiency signs develop?

Accepted Answer

A) One month 
B) Six months 
C) One year 
D) Three years 
A) One month 
B) Six months 
C) One year 
D) Three years

Question 10

Why are vegetarians at risk of developing a vitamin B12 deficiency?

Accepted Answer

A) Vegetarian diets inhibit absorption of the vitamin 
B) Vegetarian diets provide insufficient amounts of the vitamin 
C) The fiber content of vegetarian diets causes decreased storage by the liver 
D) The fiber content of vegetarian diets causes increased excretion of the vitamin 
A) Vegetarian diets inhibit absorption of the vitamin 
B) Vegetarian diets provide insufficient amounts of the vitamin 
C) The fiber content of vegetarian diets causes decreased storage by the liver 
D) The fiber content of vegetarian diets causes increased excretion of the vitamin

Question 11

Which of the following is not a characteristic of vitamin B6 in nutrition?

Accepted Answer

A) It is stored in muscle tissue 
B) It is required in amounts proportional to energy expenditure 
C) It can lead to irreversible nerve damage when taken in large doses 
D) It functions, in part, in the synthesis of glycine and glutamic acid 
A) It is stored in muscle tissue 
B) It is required in amounts proportional to energy expenditure 
C) It can lead to irreversible nerve damage when taken in large doses 
D) It functions, in part, in the synthesis of glycine and glutamic acid

Question 12

Which of the following is known to significantly affect the body's folate status?

Accepted Answer

A) Sedentary lifestyle 
B) Some anticancer drugs 
C) Excess protein intake 
D) Insufficient fiber intake 
A) Sedentary lifestyle 
B) Some anticancer drugs 
C) Excess protein intake 
D) Insufficient fiber intake

Question 13

John is looking to increase his dietary sources of vitamin C.However, he expresses a strong dislike for all citrus fruits.Which of the following shopping lists would you recommend?

Accepted Answer

A) Liver, yogurt, milk 
B) Brussels sprouts, broccoli, strawberries 
C) Banana, peanut butter, canned tuna fish 
D) Whole grains, pork, fortified corn flakes 
A) Liver, yogurt, milk 
B) Brussels sprouts, broccoli, strawberries 
C) Banana, peanut butter, canned tuna fish 
D) Whole grains, pork, fortified corn flakes

Question 14

Which of the following diets is most likely to lead to beriberi?

Accepted Answer

A) High intakes of white rice 
B) Low intakes of whole grains 
C) High intakes of unrefined rice 
D) Low intakes of enriched grains 
A) High intakes of white rice 
B) Low intakes of whole grains 
C) High intakes of unrefined rice 
D) Low intakes of enriched grains

Question 15

Approximately what percentage of the U.S.population takes multinutrient supplements regularly?

Accepted Answer

A) 5 
B) 33 
C) 50 
D) 80 
A) 5 
B) 33 
C) 50 
D) 80

Question 16

Approximately what percentage of alcoholics exhibit thiamin deficiency?

Accepted Answer

A) 20 
B) 40 
C) 60 
D) 80 
A) 20 
B) 40 
C) 60 
D) 80

Question 17

Irreversible nerve damage has been reported in people taking large doses of

Accepted Answer

A) vitamin B1. 
B) vitamin B2. 
C) vitamin B6. 
D) vitamin B12. 
A) vitamin B1. 
B) vitamin B2. 
C) vitamin B6. 
D) vitamin B12.

Question 18

Cooking a food in liberal amounts of water is least likely to affect the vitamin content of

Accepted Answer

A) folate. 
B) thiamin. 
C) vitamin A. 
D) riboflavin. 
A) folate. 
B) thiamin. 
C) vitamin A. 
D) riboflavin.

Question 19

All of the following are features of vitamin B6 metabolism except

Accepted Answer

A) a deficiency or toxicity leads to depression. 
B) its destruction and excretion are promoted by alcohol intake. 
C) it functions primarily as the coenzyme pyridoxal phosphate. 
D) it enhances physical performance when supplied at a level of l mg/g of dietary protein. 
A) a deficiency or toxicity leads to depression. 
B) its destruction and excretion are promoted by alcohol intake. 
C) it functions primarily as the coenzyme pyridoxal phosphate. 
D) it enhances physical performance when supplied at a level of l mg/g of dietary protein.

Question 20

Which of the following vitamins is known to sustain substantial losses during processing of food?

Accepted Answer

A) Biotin 
B) Niacin 
C) Vitamin B12 
D) Pantothenic acid 
A) Biotin 
B) Niacin 
C) Vitamin B12 
D) Pantothenic acid

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

Riboflavin in its coenzyme form functions in the transfer of

A similar type of anemia is produced when there is a deficiency of either

All of the following are general characteristics of the fat-soluble vitamins except

Which of the following is probably required in the diet of human beings?

Moderate intakes of which of the following would provide sufficient amounts of vitamin C?

A deficiency of which of the following vitamins results in accumulation of homocysteine in the blood?

What is a free radical?

Which of the following food groups ordinarily contains the highest amount of riboflavin when expressed per kcalorie?

In a person who loses the ability to absorb vitamin B12, approximately what period of time could elapse before deficiency signs develop?

Why are vegetarians at risk of developing a vitamin B12 deficiency?

Which of the following is not a characteristic of vitamin B6 in nutrition?

Which of the following is known to significantly affect the body's folate status?

John is looking to increase his dietary sources of vitamin C.However, he expresses a strong dislike for all citrus fruits.Which of the following shopping lists would you recommend?

Which of the following diets is most likely to lead to beriberi?

Approximately what percentage of the U.S.population takes multinutrient supplements regularly?

Approximately what percentage of alcoholics exhibit thiamin deficiency?

Irreversible nerve damage has been reported in people taking large doses of

Cooking a food in liberal amounts of water is least likely to affect the vitamin content of

All of the following are features of vitamin B6 metabolism except

Which of the following vitamins is known to sustain substantial losses during processing of food?

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 a person who loses the ability to absorb vitamin B₁₂, approximately what period of time could elapse before deficiency signs develop?

Why are vegetarians at risk of developing a vitamin B₁₂ deficiency?

Which of the following is not a characteristic of vitamin B₆ in nutrition?

All of the following are features of vitamin B₆ metabolism except