Question 1

Beriberi is caused by a ______ deficiency.

Accepted Answer

A)  thiamin
B)  vitamin B-6
C)  niacin
D)  cholineE) C) and D)
F) A) and B)

Question 2

The apparent role of _______ in prevention of birth defects is similar to that of folate.

Accepted Answer

A)  manganese
B)  molybdenum
C)  choline
D)  pantothenic acidE) A) and B)
F) A) and C)

Question 3

Biotin absorption is inhibited by

Accepted Answer

A)  phytate.
B)  oxalate.
C)  avidin.
D)  copper.E) B) and C)
F) A) and D)

Question 4

Bill's physician has written a prescription for 1.5 grams of nicotinic acid (a form of niacin) per day.Which of the following is a benefit of high doses of niacin?

Accepted Answer

A)  It is a potent antioxidant.
B)  It can lower blood pressure.
C)  It can lower blood sugar levels.
D)  It can lower blood cholesterol levels.E) A) and C)
F) A) and B) D

Question 5

_________ is important in the synthesis of thyroid hormone.Lack of it will lead to a goiter.

Accepted Answer

A)  Chromium
B)  Biotin
C)  Iodine
D)  FluorideE) B) and C)
F) None of the above

Question 6

A major source of iodine in the North American diet is

Accepted Answer

A)  seaweed.
B)  sea salt.
C)  table salt.
D)  carbonated soft drinks.E) A) and B)
F) A) and C)

Question 7

Pellagra is characterized by

Accepted Answer

A)  diarrhea.
B)  dementia.
C)  dermatitis.
D)  All the above.E) A) and C)
F) All of the above

Question 8

In North America,which of the following populations is most susceptible to deficiencies of B vitamins?

Accepted Answer

A)  Vegans
B)  Pregnant women
C)  Preschoool children
D)  AlcoholicsE) A) and C)
F) B) and D)

Question 9

Consistently consuming raw egg whites,as in a daily high-protein drink,can bind and result in deficiency.

Accepted Answer

A)  folate
B)  vitamin B-6
C)  pantothenic acid
D)  biotinE) A) and B)
F) A) and C) D

Question 10

Risk of molybdenum toxicity risk in humans is quite low.

Accepted Answer

A) True 
 B)False

Question 11

A ______ is an organic compound that aids enzyme function by combining with an inactive enzyme to form a catalytically active form.

Accepted Answer

A)  zymogen
B)  precursor
C)  coenzyme
D)  vitaminE) A) and D)
F) All of the above

Question 12

People who eat large amounts of seaweed can consume toxic levels of which trace mineral?

Accepted Answer

A)  Selenium
B)  Iron
C)  Zinc
D)  IodineE) A) and B)
F) All of the above

Question 13

Manganese is required as a cofactor for synthesis of _______ and metabolism of some _______.

Accepted Answer

A)  glucose;amino acids
B)  protein;fatty acids
C)  starch;bile acids
D)  cholesterol;triglyceridesE) B) and C)
F) All of the above

Question 14

Manganese is not toxic at high doses.

Accepted Answer

A) True 
 B)False

Question 15

In the body,the amino acid tryptophan can be converted into

Accepted Answer

A)  niacin.
B)  thiamin.
C)  vitamin B-6.
D)  riboflavin.E) A) and D)
F) B) and C)

Question 16

Symptoms of ______ deficiency include glossitis,dermatitis,cheilosis,eye disorders,sun sensitivity,and confusion.

Accepted Answer

A)  thiamin
B)  niacin
C)  riboflavin
D)  folateE) B) and C)
F) B) and D) C

Question 17

______ 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)  RiboflavinE) All of the above
F) A) and B)

Question 18

The nutrient that prevents beriberi is

Accepted Answer

A)  vitamin B-12.
B)  niacin.
C)  riboflavin.
D)  thiamin.E) C) and D)
F) A) and B)

Question 19

A pantothenic acid deficiency

Accepted Answer

A)  is very unlikely because of its widespread availability.
B)  is very likely.
C)  occurs commonly in children.
D)  occurs commonly in the elderly.E) A) and B)
F) C) and D)

Question 20

A deficiency of vitamin B-6 can result in depression,headaches,and confusion.These occur because of impaired

Accepted Answer

A)  hemoglobin synthesis.
B)  glucose metabolism.
C)  neurotransmitter synthesis.
D)  DNA synthesis.E) A) and D)
F) A) and B)

Exam 12: Micronutrient Function in Energy Metabolism

Beriberi is caused by a ______ deficiency.

Correct AnswerverifiedShow Answer

The apparent role of _______ in prevention of birth defects is similar to that of folate.

Correct AnswerverifiedShow Answer

Biotin absorption is inhibited by

Correct AnswerverifiedShow Answer

Bill's physician has written a prescription for 1.5 grams of nicotinic acid (a form of niacin) per day.Which of the following is a benefit of high doses of niacin?

Correct AnswerverifiedD

_________ is important in the synthesis of thyroid hormone.Lack of it will lead to a goiter.

Correct AnswerverifiedShow Answer

A major source of iodine in the North American diet is

Correct AnswerverifiedShow Answer

Pellagra is characterized by

Correct AnswerverifiedShow Answer

In North America,which of the following populations is most susceptible to deficiencies of B vitamins?

Correct AnswerverifiedShow Answer

Consistently consuming raw egg whites,as in a daily high-protein drink,can bind and result in deficiency.

Correct AnswerverifiedD

Risk of molybdenum toxicity risk in humans is quite low.

Correct AnswerverifiedShow Answer

A ______ is an organic compound that aids enzyme function by combining with an inactive enzyme to form a catalytically active form.

Correct AnswerverifiedShow Answer

People who eat large amounts of seaweed can consume toxic levels of which trace mineral?

Correct AnswerverifiedShow Answer

Manganese is required as a cofactor for synthesis of _______ and metabolism of some _______.

Correct AnswerverifiedShow Answer

Manganese is not toxic at high doses.

Correct AnswerverifiedShow Answer

In the body,the amino acid tryptophan can be converted into

Correct AnswerverifiedShow Answer

Symptoms of ______ deficiency include glossitis,dermatitis,cheilosis,eye disorders,sun sensitivity,and confusion.

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

The nutrient that prevents beriberi is

Correct AnswerverifiedShow Answer

A pantothenic acid deficiency

Correct AnswerverifiedShow Answer

A deficiency of vitamin B-6 can result in depression,headaches,and confusion.These occur because of impaired

Correct AnswerverifiedShow Answer

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D

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D

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Manganese is required as a cofactor for synthesis of _ and metabolism of some _.

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C

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