Question 1

How can individuals increase their intake of dietary iron?

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Question 2

How does the body conserve iron?

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Question 3

What do arsenic,boron,nickel,silicon and vanadium have in common?
A)none have an AI
B)none have an RDA
C)some have a UL
D)all of the above

Accepted Answer

Arsenic, boron, nickel, silicon, and vanadium do not have an Adequate Intake (AI) level, a Recommended Dietary Allowance (RDA), and some of them have a Tolerable Upper Intake Level (UL), making all of the statements correct.

Question 4

What are common body functions of manganese?

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Question 5

For which population groups is iron deficiency most likely? Why?

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Question 6

What is the role of selenium in Keshan disease?

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Question 7

What factors influence copper absorption into the body?

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Question 8

What was aprimary finding from the Brantford-Sarnia-Stratford study of water fluoridation in Canada?
A)the establishment of the prevalence of fluorosis in Brantford,Ontario.
B)the presence of "Colorado brown stain" on the teeth of all Canadian children.
C)that filtering the fluoride out of the water supply improved glucose regulation in Canadian adults.
D)that artificially fluoridating the water supply significantly reduced the prevalence of dental caries in Canadian children.

Accepted Answer

The primary finding from the Brantford-Sarnia-Stratford study of water fluoridation in Canada was that artificially fluoridating the water supply significantly reduced the prevalence of dental caries in Canadian children. This finding supports the benefits of water fluoridation for oral health.

Question 9

How does a diet high in iron affect zinc status in the body? How does a high-zinc diet affect copper status?

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Question 10

Which does NOT require molybdenum?
A)metabolism of sulfur-containing amino acids.
B)production of uric acid.
C)synthesis of collagen.
D)metabolism of nitrogen containing compounds in RNA and DNA.

Accepted Answer

Molybdenum is required for the metabolism of sulfur-containing amino acids and nitrogen-containing compounds in RNA and DNA, as well as for the production of uric acid. However, it is not involved in the synthesis of collagen.

Question 11

Which of the following trace elements is needed to activate enzymes and in the production of uric acid?
A)chromium
B)molybdenum
C)selenium
D)zinc

Accepted Answer

Molybdenum is needed to activate enzymes and is also crucial in the production of uric acid. Chromium is important in glucose metabolism, selenium is an antioxidant, and zinc is involved in numerous cellular processes including DNA synthesis and immune function.

Question 12

What is the function of hemoglobin in the body?

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Question 13

What role does zinc play in reducing the prevalence and severity of the common cold?

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Question 14

What role does soil selenium content play on Keshan disease?

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Question 15

What is the basis for the AI for fluoride?
A)The amount that reduces dental caries without side effects.
B)The amount that maintain bone health.
C)The amount that prevent Colorado brown stain.
D)The amount that stimulates saliva flow.

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Question 16

What is the recommended fluoride concentration in the Canadian water supply
A)0.7-1.2 parts per million (ppm).
B)lower for warmer climates,where more water is consumed.
C)higher for colder climates,where less water is consumed.
D)All of the above answer choices are correct.

Accepted Answer

The recommended fluoride concentration in the Canadian water supply is 0.7-1.2 ppm, with adjustments based on local climate conditions to account for variations in water consumption.

Question 17

What are the best food sources of zinc?

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Question 18

How is iron transported in the blood?

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...

Question 19

What factors enhance iron absorption? What are factors that interfere with iron absorption?

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Question 20

What are consequences of a zinc deficient diet?

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Quiz 12: The Trace Elements