Question 1

A compound called TPP activates an enzyme critical in carbohydrate metabolism.TPP is

Accepted Answer

A)  a coenzyme. 
B)  a B-vitamin called thiamin. 
C)  a derivative of adenosine triphosphate (ATP). 
D)  a branched-chain amino acid. 
A)  a coenzyme. 
B)  a B-vitamin called thiamin. 
C)  a derivative of adenosine triphosphate (ATP). 
D)  a branched-chain amino acid. A

Question 2

Toxicity symptoms of vitamin A include birth defects,spontaneous abortion,blurred vision,and liver damage.

Accepted Answer

A) True 
 B)False  True

Question 3

Inadequate intake of folate during pregnancy increases the risk for a serious birth defect.

Accepted Answer

A) True 
 B)False  True

Question 4

Good sources of riboflavin include

Accepted Answer

A)  milk, meats, and green vegetables. 
B)  refined grains and pork. 
C)  citrus fruits and berries. 
D)  potatoes, carrots, and bananas. 
A)  milk, meats, and green vegetables. 
B)  refined grains and pork. 
C)  citrus fruits and berries. 
D)  potatoes, carrots, and bananas.

Question 5

A deficiency of which of the following can result in erythrocyte hemolysis,leading to anemia?

Accepted Answer

A)  beta-carotene 
B)  vitamin E 
C)  vitamin C 
D)  selenium 
A)  beta-carotene 
B)  vitamin E 
C)  vitamin C 
D)  selenium

Question 6

All antioxidants are water soluble.

Accepted Answer

A) True 
 B)False

Question 7

The most potent form of vitamin E is

Accepted Answer

A)  alpha-tocopherol. 
B)  beta-tocopherol. 
C)  delta-tocopherol. 
D)  gamma-tocopherol. 
A)  alpha-tocopherol. 
B)  beta-tocopherol. 
C)  delta-tocopherol. 
D)  gamma-tocopherol.

Question 8

A deficiency of which micronutrient may result in small red blood cells with inadequate hemoglobin?

Accepted Answer

A)  choline 
B)  biotin 
C)  vitamin B₆ 
D)  pantothenic acid 
A)  choline 
B)  biotin 
C)  vitamin B₆ 
D)  pantothenic acid

Question 9

What is the primary role of the B-vitamins?

Accepted Answer

A)  provide the body directly with energy 
B)  act as coenzymes 
C)  maintain and repair body tissues 
D)  maintain acid-base balance 
A)  provide the body directly with energy 
B)  act as coenzymes 
C)  maintain and repair body tissues 
D)  maintain acid-base balance

Question 10

Milk is a good source of riboflavin.

Accepted Answer

A) True 
 B)False

Question 11

How is vitamin B₆ important in the metabolism of amino acids?

Accepted Answer

A)  It breaks down amino acids to nitrogen. 
B)  It creates high levels of the amino acid homocysteine. 
C)  It plays a critical role in transamination. 
D)  Deamination cannot occur without it. 
A)  It breaks down amino acids to nitrogen. 
B)  It creates high levels of the amino acid homocysteine. 
C)  It plays a critical role in transamination. 
D)  Deamination cannot occur without it.

Question 12

About 90 percent of vitamin E is stored in

Accepted Answer

A)  adipose tissue. 
B)  the liver. 
C)  cell membranes. 
D)  the skin. 
A)  adipose tissue. 
B)  the liver. 
C)  cell membranes. 
D)  the skin.

Question 13

A goiter can result from

Accepted Answer

A)  too much or too little iodine in the diet. 
B)  choline supplementation. 
C)  vitamin A toxicity. 
D)  chromium deficiency. 
A)  too much or too little iodine in the diet. 
B)  choline supplementation. 
C)  vitamin A toxicity. 
D)  chromium deficiency.

Question 14

Thiamin,consumed in excess,is toxic.

Accepted Answer

A) True 
 B)False

Question 15

Explain how oxidation reactions can result in the formation of free radicals,and how antioxidants oppose their formation.

Accepted Answer

Oxidation reactions can result in the fo

Question 16

Diseases that cause malabsorption of fat commonly result in vitamin C deficiency.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following are excellent sources of folate?

Accepted Answer

A)  chicken and turkey 
B)  cooked broccoli 
C)  cheeses 
D)  ready-to-eat cereals and breads 
A)  chicken and turkey 
B)  cooked broccoli 
C)  cheeses 
D)  ready-to-eat cereals and breads

Question 18

Excessive consumption of vitamin A supplements can be highly toxic.

Accepted Answer

A) True 
 B)False

Question 19

A person suffering from fatigue,muscle wasting,reduced cognitive function,and paralysis is most likely to have which of the following conditions?

Accepted Answer

A)  niacin toxicity 
B)  beriberi 
C)  pellagra 
D)  ariboflavinosis 
A)  niacin toxicity 
B)  beriberi 
C)  pellagra 
D)  ariboflavinosis

Question 20

Iodine is essential for the synthesis of which kind of hormones?

Accepted Answer

A)  pituitary hormones 
B)  growth hormones 
C)  thyroid hormones 
D)  androgens 
A)  pituitary hormones 
B)  growth hormones 
C)  thyroid hormones 
D)  androgens

Exam 8: Nutrients Essential to Key Body Functions

A compound called TPP activates an enzyme critical in carbohydrate metabolism.TPP is

Toxicity symptoms of vitamin A include birth defects,spontaneous abortion,blurred vision,and liver damage.

Inadequate intake of folate during pregnancy increases the risk for a serious birth defect.

Good sources of riboflavin include

A deficiency of which of the following can result in erythrocyte hemolysis,leading to anemia?

All antioxidants are water soluble.

The most potent form of vitamin E is

A deficiency of which micronutrient may result in small red blood cells with inadequate hemoglobin?

What is the primary role of the B-vitamins?

Milk is a good source of riboflavin.

How is vitamin B₆ important in the metabolism of amino acids?

About 90 percent of vitamin E is stored in

A goiter can result from

Thiamin,consumed in excess,is toxic.

Explain how oxidation reactions can result in the formation of free radicals,and how antioxidants oppose their formation.

Diseases that cause malabsorption of fat commonly result in vitamin C deficiency.

Which of the following are excellent sources of folate?

Excessive consumption of vitamin A supplements can be highly toxic.

A person suffering from fatigue,muscle wasting,reduced cognitive function,and paralysis is most likely to have which of the following conditions?

Iodine is essential for the synthesis of which kind of hormones?

Nutrition: Linking Food and Health

Designing a Healthful Diet

The Human Body: Are We Really What We Eat

Carbohydrates: Plant-Derived Energy Nutrients

Fats: Essential Energy-Supplying Nutrients

Proteins: Crucial Components of All Body Tissues

Nutrients Involved in Fluid and Electrolyte Balance

Nutrients Essential to Healthy Tissues

Achieving and Maintaining a Healthful Body Weight

Nutrition and Physical Activity: Keys to Good Health

Food Safety and Technology: Protecting Our Food

Food Equity,Sustainability,and Quality: The Challenge of Good Food

Nutrition Through the Lifecycle: Pregnancy and the First Year of Life

Nutrition Through the Lifecycle: Childhood to Late Adulthood

New Frontiers in Nutrition and Health

Healthful Eating Patterns

Disorders Related to Specific Foods

Diabetes

Cardiovascular Disease

Vitamins and Minerals: Micronutrients With Macro Powers

Alcohol

Cancer

Osteoporosis

Obesity

Disorders Related to Body Image, Eating, and Exercise

The Safety and Effectiveness of Dietary Supplements

Malnutrition

The Fetal Environment

Searching for the Fountain of Youth

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