Question 1

Homocysteine can be converted to cysteine if an individual's vitamin B₆ status is adequate.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following diseases has NOT been linked to free radical damage?

Accepted Answer

A)   cancer
B)   cataracts
C)   arthritis
D)   osteoporosisE) A) and B)
F) All of the above

Question 3

Explain the mechanisms by which consuming a diet rich in vitamin C may help protect against lung cancer and stomach cancer.

Accepted Answer

Consuming a diet rich in vitamin C may h...

Question 4

Which of the following statements concerning vitamin C is TRUE?

Accepted Answer

A)   Vitamin C helps protect smokers' lungs from oxidative damage prompted by tobacco smoke.
B)   Vitamin C regenerates DNA after it has been oxidized.
C)   Vitamin C is an important antioxidant in the intracellular fluid.
D)   Vitamin C is a mild anticoagulant.E) All of the above
F) A) and B)

Question 5

Carrots,spinach,and sweet potatoes contain a large amount of preformed vitamin A.

Accepted Answer

A) True 
 B)False

Question 6

Explain how vitamin A affects growth,reproduction,and cell differentiation.

Accepted Answer

Vitamin A plays a crucial role in variou...

Question 7

Hydrogen gas (H₂) is an example of

Accepted Answer

A)   a free radical.
B)   an antioxidant.
C)   a molecule.
D)   a compound.E) None of the above
F) A) and D)

Question 8

Acne is a symptom of a vitamin A deficiency.

Accepted Answer

A) True 
 B)False

Question 9

A vitamin A deficiency can cause night blindness.

Accepted Answer

A) True 
 B)False

Question 10

What is the primary symptom of niacin toxicity?

Accepted Answer

A)   dizziness
B)   diarrhea
C)   fatigue
D)   flushingE) A) and B)
F) A) and C)

Question 11

Vitamin A deficiency is a severe public health concern in developing nations,often resulting in blindness and death due to infection.

Accepted Answer

A) True 
 B)False

Question 12

Wernicke-Korsakoff syndrome is associated with the decreased absorption and utilization of

Accepted Answer

A)   glucose.
B)   thiamin.
C)   riboflavin.
D)   protein.E) B) and D)
F) None of the above

Question 13

Adequate folate consumption is the most critical during the last trimester of pregnancy.

Accepted Answer

A) True 
 B)False

Question 14

Pernicious anemia is a vitamin B₁₂ deficiency disease that develops when people-such as those following a vegan diet-fail to consume any animal-based foods.

Accepted Answer

A) True 
 B)False

Question 15

Diseases that cause the malabsorption of fat can result in a deficiency of

Accepted Answer

A)   vitamin A.
B)   vitamin B₆.
C)   vitamin C.
D)   selenium.E) B) and C)
F) A) and D)

Question 16

Which of the following is a molecule that combines with an enzyme to activate it and help it do its job?

Accepted Answer

A)   a transport protein
B)   collagen
C)   a coenzyme
D)   a prionE) None of the above
F) C) and D)

Question 17

How much beta-carotene is considered equivalent to one unit of vitamin A?

Accepted Answer

A)   two units
B)   four units
C)   six units
D)   twelve unitsE) A) and B)
F) None of the above

Question 18

Diets rich in vitamin B₆,folate,and vitamin B₁₂ are associated with reduced blood levels of the amino acid homocysteine.

Accepted Answer

A) True 
 B)False

Question 19

The chronic overconsumption of which of the following foods can result in a biotin deficiency?

Accepted Answer

A)   herbal tea
B)   raw egg whites
C)   natural licorice
D)   grapefruit juiceE) All of the above
F) None of the above

Question 20

Which of the following is NOT a vitamin?

Accepted Answer

A)   pantothenic acid
B)   biotin
C)   choline
D)   riboflavinE) A) and D)
F) A) and C)

Exam 8: Nutrients Essential to Key Body Functions

What is the primary symptom of niacin toxicity?

Correct AnswerverifiedShow Answer

Diets rich in vitamin B₆,folate,and vitamin B₁₂ are associated with reduced blood levels of the amino acid homocysteine.

Correct AnswerverifiedShow Answer

Homocysteine can be converted to cysteine if an individual's vitamin B₆ status is adequate.

Correct AnswerverifiedShow Answer

Diseases that cause the malabsorption of fat can result in a deficiency of

Correct AnswerverifiedShow Answer

Acne is a symptom of a vitamin A deficiency.

Correct AnswerverifiedShow Answer

Which of the following is NOT a vitamin?

Correct AnswerverifiedShow Answer

Wernicke-Korsakoff syndrome is associated with the decreased absorption and utilization of

Correct AnswerverifiedShow Answer

Vitamin A deficiency is a severe public health concern in developing nations,often resulting in blindness and death due to infection.

Correct AnswerverifiedShow Answer

Pernicious anemia is a vitamin B₁₂ deficiency disease that develops when people-such as those following a vegan diet-fail to consume any animal-based foods.

Correct AnswerverifiedShow Answer

Which of the following is a molecule that combines with an enzyme to activate it and help it do its job?

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The chronic overconsumption of which of the following foods can result in a biotin deficiency?

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Carrots,spinach,and sweet potatoes contain a large amount of preformed vitamin A.

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A vitamin A deficiency can cause night blindness.

Correct AnswerverifiedShow Answer

Which of the following diseases has NOT been linked to free radical damage?

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How much beta-carotene is considered equivalent to one unit of vitamin A?

Correct AnswerverifiedShow Answer

Explain the mechanisms by which consuming a diet rich in vitamin C may help protect against lung cancer and stomach cancer.

Correct AnswerAnswered by ExamLex AIConsuming a diet rich in vitamin C may h...View AnswerShow Answer

Explain how vitamin A affects growth,reproduction,and cell differentiation.

Correct AnswerAnswered by ExamLex AIVitamin A plays a crucial role in variou...View AnswerShow Answer

Hydrogen gas (H₂) is an example of

Correct AnswerverifiedShow Answer

Which of the following statements concerning vitamin C is TRUE?

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Adequate folate consumption is the most critical during the last trimester of pregnancy.

Correct AnswerverifiedShow Answer

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Consuming a diet rich in vitamin C may h...
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Vitamin A plays a crucial role in variou...
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