Question 1

The name of the active vitamin B-6 coenzyme is

Accepted Answer

A)  nicotinamide. 
B)  pyridoxal phosphate (PLP). 
C)  thiamin pyrophosphate (TPP). 
D)  flavin adenine dinucleotide (FA
D) . 
A)  nicotinamide. 
B)  pyridoxal phosphate (PLP). 
C)  thiamin pyrophosphate (TPP). 
D)  flavin adenine dinucleotide (FA
D) .

Question 2

Which of the following vitamins is most readily excreted by the body?

Accepted Answer

A)  Vitamin B-6 
B)  Vitamin B-12 
C)  Vitamin D 
D)  Thiamin 
A)  Vitamin B-6 
B)  Vitamin B-12 
C)  Vitamin D 
D)  Thiamin

Question 3

Which of the following vitamins serves as an antioxidant in cell membranes?

Accepted Answer

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

Question 4

Most water-soluble vitamins are rapidly excreted from the body when consumed in excess. However, ________ is an example of a water-soluble vitamin that can accumulate to toxic levels in the liver.

Accepted Answer

A)  vitamin B-6 
B)  thiamin 
C)  riboflavin 
D)  vitamin C 
A)  vitamin B-6 
B)  thiamin 
C)  riboflavin 
D)  vitamin C

Question 5

Food processing

Accepted Answer

A)  enhances vitamin E absorption from foods. 
B)  increases vitamin E content of foods. 
C)  decreases vitamin E content of foods. 
D)  has no effect on vitamin E in foods because it is a stable compound. 
A)  enhances vitamin E absorption from foods. 
B)  increases vitamin E content of foods. 
C)  decreases vitamin E content of foods. 
D)  has no effect on vitamin E in foods because it is a stable compound.

Question 6

The vitamin that poses the greatest risk for toxicity is

Accepted Answer

A)  vitamin A. 
B)  vitamin D. 
C)  vitamin E. 
D)  vitamin K. 
A)  vitamin A. 
B)  vitamin D. 
C)  vitamin E. 
D)  vitamin K.

Question 7

The American Heart Association, the U.S. Preventive Services Task Force, and the National Academy of Sciences ________ vitamin E supplements for the prevention of cardiovascular disease.

Accepted Answer

A)  do not recommend 
B)  recommend 
A)  do not recommend 
B)  recommend

Question 8

Vitamin C and meat protein ________ nonheme iron absorption.

Accepted Answer

A)  increase 
B)  decrease 
C)  do not change 
A)  increase 
B)  decrease 
C)  do not change

Question 9

Vitamin C enhances the absorption of

Accepted Answer

A)  vitamin A. 
B)  vitamin E. 
C)  iron. 
D)  zinc. 
A)  vitamin A. 
B)  vitamin E. 
C)  iron. 
D)  zinc.

Question 10

When B vitamins are consumed in their coenzyme forms,

Accepted Answer

A)  they are broken down to free vitamins in the stomach and small intestine prior to absorption. 
B)  intestinal absorption of fat is enhanced. 
C)  toxicity of B vitamins is likely to occur. 
D)  more energy is available to the body. 
A)  they are broken down to free vitamins in the stomach and small intestine prior to absorption. 
B)  intestinal absorption of fat is enhanced. 
C)  toxicity of B vitamins is likely to occur. 
D)  more energy is available to the body.

Question 11

________ is a water-soluble vitamin that is especially important in amino acid metabolism, neurotransmitter synthesis, and the synthesis of the heme portion of hemoglobin.

Accepted Answer

A)  Vitamin C 
B)  Vitamin B-6 
C)  Thiamin 
D)  Riboflavin 
A)  Vitamin C 
B)  Vitamin B-6 
C)  Thiamin 
D)  Riboflavin

Question 12

Which of the following is true about the regulation of the production and sale of vitamin and mineral supplements?

Accepted Answer

A)  There is no federal legislation regulating supplements. 
B)  The FDA does not regulate all vitamin and mineral supplements closely. 
C)  Americans can rest assured that the federal government will protect them from vitamin and mineral supplement overuse. 
D)  Supplement companies are free to market their products with invalid and illegal claims. 
A)  There is no federal legislation regulating supplements. 
B)  The FDA does not regulate all vitamin and mineral supplements closely. 
C)  Americans can rest assured that the federal government will protect them from vitamin and mineral supplement overuse. 
D)  Supplement companies are free to market their products with invalid and illegal claims.

Question 13

The best vitamin B-6 food sources include

Accepted Answer

A)  enriched breads and cereals. 
B)  milk and dairy products. 
C)  meat, fish, and poultry. 
D)  deep yellow/orange fruits and vegetables. 
A)  enriched breads and cereals. 
B)  milk and dairy products. 
C)  meat, fish, and poultry. 
D)  deep yellow/orange fruits and vegetables.

Question 14

Retinol activity equivalents (RAE) take into account the activity of provitamin A carotenoids and ________ found in foods.

Accepted Answer

A)  preformed vitamin A 
B)  lutein and zeaxanthin 
C)  cysteine 
D)  None of these are correct. 
A)  preformed vitamin A 
B)  lutein and zeaxanthin 
C)  cysteine 
D)  None of these are correct.

Question 15

A disease that involves fat malabsorption could lead to

Accepted Answer

A)  osteomalacia. 
B)  scurvy. 
C)  pellagra. 
D)  beriberi. 
A)  osteomalacia. 
B)  scurvy. 
C)  pellagra. 
D)  beriberi.

Question 16

Taking large supplemental doses of vitamins A and E can

Accepted Answer

A)  result in vitamin toxicity. 
B)  cure the common cold. 
C)  prevent cancer. 
D)  prevent heart disease. 
A)  result in vitamin toxicity. 
B)  cure the common cold. 
C)  prevent cancer. 
D)  prevent heart disease.

Question 17

Cruciferous vegetables such as ______ are rich in cancer-preventing phytochemicals.

Accepted Answer

A)  onions and leeks 
B)  carrots and sweet potatoes 
C)  cabbage and cauliflower 
D)  spinach and Swiss chard 
A)  onions and leeks 
B)  carrots and sweet potatoes 
C)  cabbage and cauliflower 
D)  spinach and Swiss chard

Question 18

The most bioavailable source of vitamin E is

Accepted Answer

A)  plant oil. 
B)  fish oil. 
C)  alpha-tocopherol supplements. 
D)  mixed-tocopherol supplements. 
A)  plant oil. 
B)  fish oil. 
C)  alpha-tocopherol supplements. 
D)  mixed-tocopherol supplements.

Question 19

Beta-carotene is a precursor to

Accepted Answer

A)  vitamin A. 
B)  vitamin E. 
C)  vitamin C. 
D)  vitamin D. 
A)  vitamin A. 
B)  vitamin E. 
C)  vitamin C. 
D)  vitamin D.

Question 20

In the United States, bread and cereal products made from milled grains are enriched with

Accepted Answer

A)  vitamins A, D, and E. 
B)  thiamin, riboflavin, and niacin. 
C)  vitamins A, C, and K. 
D)  folate, choline, and vitamin B-12. 
A)  vitamins A, D, and E. 
B)  thiamin, riboflavin, and niacin. 
C)  vitamins A, C, and K. 
D)  folate, choline, and vitamin B-12.

The name of the active vitamin B-6 coenzyme is

Which of the following vitamins is most readily excreted by the body?

Which of the following vitamins serves as an antioxidant in cell membranes?

Most water-soluble vitamins are rapidly excreted from the body when consumed in excess. However, ________ is an example of a water-soluble vitamin that can accumulate to toxic levels in the liver.

Food processing

The vitamin that poses the greatest risk for toxicity is

The American Heart Association, the U.S. Preventive Services Task Force, and the National Academy of Sciences ________ vitamin E supplements for the prevention of cardiovascular disease.

Vitamin C and meat protein ________ nonheme iron absorption.

Vitamin C enhances the absorption of

When B vitamins are consumed in their coenzyme forms,

________ is a water-soluble vitamin that is especially important in amino acid metabolism, neurotransmitter synthesis, and the synthesis of the heme portion of hemoglobin.

Which of the following is true about the regulation of the production and sale of vitamin and mineral supplements?

The best vitamin B-6 food sources include

Retinol activity equivalents (RAE) take into account the activity of provitamin A carotenoids and ________ found in foods.

A disease that involves fat malabsorption could lead to

Taking large supplemental doses of vitamins A and E can

Cruciferous vegetables such as ______ are rich in cancer-preventing phytochemicals.

The most bioavailable source of vitamin E is

Beta-carotene is a precursor to

In the United States, bread and cereal products made from milled grains are enriched with

Nutrition, Food Choices, and Health

Designing a Healthy Dietary Pattern

The Human Body: a Nutrition Perspective

Carbohydrates

Lipids

Proteins

Energy Balance and Weight Control

Water and Minerals

Nutrition: Fitness and Sports

Eating Disorders

Global Nutrition

Protecting Our Food Supply

Nutrition During Pregnancy and Breastfeeding

Nutrition From Infancy Through Adolescence

Nutrition During Adulthood

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Exam 8: Vitamins

The name of the active vitamin B-6 coenzyme is

Which of the following vitamins is most readily excreted by the body?

Which of the following vitamins serves as an antioxidant in cell membranes?

Most water-soluble vitamins are rapidly excreted from the body when consumed in excess. However, ________ is an example of a water-soluble vitamin that can accumulate to toxic levels in the liver.

Food processing

The vitamin that poses the greatest risk for toxicity is

The American Heart Association, the U.S. Preventive Services Task Force, and the National Academy of Sciences ________ vitamin E supplements for the prevention of cardiovascular disease.

Vitamin C and meat protein ________ nonheme iron absorption.

Vitamin C enhances the absorption of

When B vitamins are consumed in their coenzyme forms,

________ is a water-soluble vitamin that is especially important in amino acid metabolism, neurotransmitter synthesis, and the synthesis of the heme portion of hemoglobin.

Which of the following is true about the regulation of the production and sale of vitamin and mineral supplements?

The best vitamin B-6 food sources include

Retinol activity equivalents (RAE) take into account the activity of provitamin A carotenoids and ________ found in foods.

A disease that involves fat malabsorption could lead to

Taking large supplemental doses of vitamins A and E can

Cruciferous vegetables such as ______ are rich in cancer-preventing phytochemicals.

The most bioavailable source of vitamin E is

Beta-carotene is a precursor to

In the United States, bread and cereal products made from milled grains are enriched with

Nutrition, Food Choices, and Health

Designing a Healthy Dietary Pattern

The Human Body: a Nutrition Perspective

Carbohydrates

Lipids

Proteins

Energy Balance and Weight Control

Water and Minerals

Nutrition: Fitness and Sports

Eating Disorders

Global Nutrition

Protecting Our Food Supply

Nutrition During Pregnancy and Breastfeeding

Nutrition From Infancy Through Adolescence

Nutrition During Adulthood

Filters