Question 1

Which of the following statements is true regarding copper absorption?

Accepted Answer

A)  Zinc promotes the absorption of copper.
B)  About 80% of copper is absorbed.
C)  Vitamin C enhances copper absorption.
D)  By inhibiting zinc absorption,phytates may enhance the copper absorption.

Question 2

Why are adequate intakes of iodine essential to good health? What are characteristics of iodine deficiencies?

Accepted Answer

Iodine is needed for synthesis of thyroi...

Question 3

All of the following are adequate sources of nonheme iron EXCEPT:

Accepted Answer

A)  apples.
B)  enriched white rice.
C)  garbanzo beans.
D)  spinach.

Question 4

What are common physiologic functions of manganese?

Accepted Answer

Manganese-containing enzymes are involve...

Question 5

The primary role of iodine in the body is:

Accepted Answer

A)  as an antioxidant.
B)  as a cofactor in hemoglobin synthesis.
C)  as a component of thyroid hormones.
D)  participation in carbohydrate metabolism

Question 6

The poorest source of fluoride among the following is:

Accepted Answer

A)  toothpaste.
B)  foods cooked with Teflon.
C)  tea.
D)  pork.

Question 7

Copper deficiency is most likely to occur in:

Accepted Answer

A)  pre-term infants.
B)  children aged 1-3.
C)  adolescents.
D)  the elderly.

Question 8

Which of the following is a copper-containing plasma protein that converts iron to a form that can be transported and stored?

Accepted Answer

A)  Ceruloplasmin
B)  Ferritin
C)  Hemoglobin
D)  Transferrin

Question 9

How can a person increase their intake of dietary iron?

Accepted Answer

The best sources of absorbable iron are ...

Question 10

The best dietary sources of manganese are:

Accepted Answer

A)  fruits and vegetables.
B)  nuts and whole grains.
C)  meats.
D)  dairy products.

Question 11

The trace minerals are difficult to study in humans because:

Accepted Answer

A)  some of them are required in such small amounts that environmental contamination can obscure experimental results.
B)  they are so small,they are difficult to identify.
C)  they are required in such small amounts that deficiencies do not occur.
D)  biological tests are imprecise.

Question 12

Lack of which trace element is the most common nutritional deficiency worldwide?

Accepted Answer

A)  Copper
B)  Zinc
C)  Iron
D)  Iodine

Question 13

Fluoride has shown to be most effective in preventing:

Accepted Answer

A)  colon cancer.
B)  dental caries.
C)  osteomalacia.
D)  obesity.

Question 14

What are good dietary sources of iodine?

Accepted Answer

Most of the iodine in the Nort...

Question 15

____________is needed to activate enzymes and in the production of uric acid.

Accepted Answer

A)  Chromium
B)  Molybdenum
C)  Selenium
D)  Zinc

Question 16

Which mineral protects against oxidative damage and also helps synthesize thyroid hormone?

Accepted Answer

A)  Copper
B)  Manganese
C)  Selenium
D)  Zinc

Question 17

Which of the following is a true statement about iron requirements?

Accepted Answer

A)  The RDA for young adult women is higher than the RDA young adult men.
B)  For adolescents 14 to 18 years-of-age,the RDA is the same for males and females.
C)  Iron requirements increase after menopause.
D)  Babies should not be fed iron-containing formulas,because of the risk of toxicity.

Question 18

What role does chromium play in glucose uptake into cells?

Accepted Answer

Chromium enhances the activity of insuli...

Question 19

In most people,taking selenium supplements to increase intake over the RDA:

Accepted Answer

A)  will protect against environmental pollutants.
B)  will prevent heart disease.
C)  will not provide any additional benefits.
D)  will slow the aging process.

Question 20

___________ is not a component of an antioxidant enzyme.

Accepted Answer

A)  Copper
B)  Iodine
C)  Selenium
D)  Zinc

Exam 12: The Trace Elements

The primary role of iodine in the body is:

Correct AnswerverifiedShow Answer

What are good dietary sources of iodine?

Correct AnswerverifiedMost of the iodine in the Nort...View AnswerShow Answer

Why are adequate intakes of iodine essential to good health? What are characteristics of iodine deficiencies?

Correct AnswerverifiedIodine is needed for synthesis of thyroi...View AnswerShow Answer

All of the following are adequate sources of nonheme iron EXCEPT:

Correct AnswerverifiedShow Answer

Which of the following statements is true regarding copper absorption?

Correct AnswerverifiedShow Answer

Fluoride has shown to be most effective in preventing:

Correct AnswerverifiedShow Answer

Which of the following is a copper-containing plasma protein that converts iron to a form that can be transported and stored?

Correct AnswerverifiedShow Answer

What are common physiologic functions of manganese?

Correct AnswerverifiedManganese-containing enzymes are involve...View AnswerShow Answer

Copper deficiency is most likely to occur in:

Correct AnswerverifiedShow Answer

The best dietary sources of manganese are:

Correct AnswerverifiedShow Answer

The poorest source of fluoride among the following is:

Correct AnswerverifiedShow Answer

Which mineral protects against oxidative damage and also helps synthesize thyroid hormone?

Correct AnswerverifiedShow Answer

What role does chromium play in glucose uptake into cells?

Correct AnswerverifiedChromium enhances the activity of insuli...View AnswerShow Answer

How can a person increase their intake of dietary iron?

Correct AnswerverifiedThe best sources of absorbable iron are ...View AnswerShow Answer

In most people,taking selenium supplements to increase intake over the RDA:

Correct AnswerverifiedShow Answer

Which of the following is a true statement about iron requirements?

Correct AnswerverifiedShow Answer

___________ is not a component of an antioxidant enzyme.

Correct AnswerverifiedShow Answer

____________is needed to activate enzymes and in the production of uric acid.

Correct AnswerverifiedShow Answer

The trace minerals are difficult to study in humans because:

Correct AnswerverifiedShow Answer

Lack of which trace element is the most common nutritional deficiency worldwide?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Most of the iodine in the Nort...
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Correct Answer
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Iodine is needed for synthesis of thyroi...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Manganese-containing enzymes are involve...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Chromium enhances the activity of insuli...
View Answer

Correct Answer
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The best sources of absorbable iron are ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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