Question 1

Why arefolate deficiency symptoms less frequent in Canada today than 40 years ago?

Accepted Answer

A)  most grain products are fortified with folic acid.
B)  more people are taking supplements.
C)  more people are drinking low-fat milk.
D)  green tea is more popular.E) B) and C)
F) B) and D)

Question 2

Which of the following foods is the best source of vitamin C?

Accepted Answer

A)  green pepper
B)  milk
C)  eggs
D)  beefE) A) and C)
F) None of the above

Question 3

Which of the following statements is NOT true?

Accepted Answer

A)  Vitamins provide energy.
B)  Vitamin deficiencies are rare in Canada.
C)  Vitamins are necessary in many biochemical reactions in the body.
D)  It generally takes longer to develop a deficiency of a fat-soluble vitamin than a deficiency of a water-soluble vitamin.E) A) and B)
F) B) and C)

Question 4

"Vitamins lost when food is processed are added back to the processed food at the same or higher level." What is being described?

Accepted Answer

A)  enhancement
B)  fortification
C)  enrichment
D)  supplementation.E) A) and B)
F) C) and D)

Question 5

Riboflavin is most easily destroyed when exposed to which of the following?

Accepted Answer

A)  light.
B)  vitamin C.
C)  oxygen.
D)  acid.E) A) and B)
F) All of the above A

Question 6

Which of the following is a good source of thiamin?

Accepted Answer

A)  sunflower seeds
B)  pork
C)  whole grains
D)  All of the above answer choices are correct.E) None of the above
F) B) and C)

Question 7

Which statement concerning vitamins is FALSE?

Accepted Answer

A)  Vitamins are organic compounds.
B)  If a vitamin is not provided by the diet,the body will synthesize it.
C)  Vitamins can be water-soluble or fat-soluble.
D)  Vitamins are essential for growth,reproduction,and health.E) B) and D)
F) A) and D)

Question 8

Beriberi is a disease caused by lack of what vitamin?

Accepted Answer

A)  riboflavin
B)  thiamin
C)  vitamin C
D)  niacinE) B) and C)
F) A) and B)

Question 9

Which statement best describes the impact of the Canadian folic acid fortification program on neural tube defects?

Accepted Answer

A)  Folic acid was added to white flour,cornmeal and pasta,but neural tube defects were only modestly reduced.
B)  Folic acid was added to white flour only and neural tube defects were only modestly reduced.
C)  Folic acid was added to white flour only and neural tube defects were substantially reduced.
D)  Folic acid was added to white flour,cornmeal and pasta,and neural tube defects were substantially reduced.E) B) and C)
F) A) and D)

Question 10

Which of the following does NOT influence the amount of B6 available for proper functioning in the body?

Accepted Answer

A)  amount of fat in the diet.
B)  oral contraceptives.
C)  exposure of the food to heat and light.
D)  alcohol ingestion.E) C) and D)
F) B) and C)

Question 11

Biotin is tightly bound by avidin,which prevents absorption of the vitamin.In what food is avidin commonly found?

Accepted Answer

A)  raw egg whites.
B)  kidney beans.
C)  peanuts.
D)  spinach.E) C) and D)
F) A) and D)

Question 12

"Beginning to take folic acid supplements after a pregnancy is confirmed is too late." Why is this statement correct?

Accepted Answer

A)  The neural tube forms before most women know they are pregnant.
B)  Increased red blood cell synthesis begins before most women know they are pregnant.
C)  Folic acid helps women to conceive.
D)  The statement is not correct.E) None of the above
F) B) and D)

Question 13

Pantothenic acid is part of what molecule?

Accepted Answer

A)  coenzyme A.
B)  flavinadenine dinucleotide.
C)  nicotinadenine dinucleotide.
D)  adenosine triphosphate.E) A) and B)
F) B) and C) A

Question 14

Many B vitamins are essential for the metabolism of energy-yielding nutrients.In this role,they are components of what type of molecules?

Accepted Answer

A)  provitamins.
B)  transport proteins.
C)  coenzymes.
D)  hormones.E) A) and C)
F) B) and C)

Question 15

Which statement about choline is TRUE?

Accepted Answer

A)  Choline has no important roles in the body.
B)  Choline is classified as a vitamin since it is necessary for the synthesis of the neurotransmitter acetylcholine.
C)  Choline deficiency causes kidney problems.
D)  Choline is not classified as a vitamin.E) C) and D)
F) B) and C)

Question 16

Which statement best describes the criteria used to set the EAR for vitamin C?

Accepted Answer

A)  high levels of vitamin C in neutrophils,a component of the immune system
B)  choice (a) in combination with high levels of vitamin C excretion in the urine
C)  choice (a) in combination with low levels of vitamin C excretion in the urine.
D)  none of the aboveE) A) and B)
F) C) and D)

Question 17

Which of the following is NOT required for the absorption of vitamin B12?

Accepted Answer

A)  adequate stomach acid.
B)  pancreatic secretions.
C)  intrinsic factor.
D)  renninE) All of the above
F) A) and B) D

Question 18

Which is not a symptoms of vitamin B6 deficiency?

Accepted Answer

A)  depression.
B)  numbness in the extremities.
C)  anemia with large,deeply coloured red blood cells.
D)  headaches.E) B) and C)
F) A) and B)

Question 19

Which of the following statements regarding vitamin C is FALSE?

Accepted Answer

A)  Vitamin C has been shown to decrease the duration and severity of the common cold.
B)  People who are prone to developing certain kinds of kidney stones should avoid Vitamin C supplementation.
C)  Studies have shown that vitamin C supplementation decreases the number of colds a person gets.
D)  Chewing vitamin C supplements can cause dental problems.E) All of the above
F) C) and D)

Question 20

What is another name for vitamin B6?

Accepted Answer

A)  pantothenic acid.
B)  pyridoxine.
C)  pyruvate.
D)  biotin.E) All of the above
F) A) and B)

Exam 8: A: the Water-Soluble Vitamins

Why arefolate deficiency symptoms less frequent in Canada today than 40 years ago?

Correct AnswerverifiedShow Answer

Which of the following foods is the best source of vitamin C?

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Which of the following statements is NOT true?

Correct AnswerverifiedShow Answer

"Vitamins lost when food is processed are added back to the processed food at the same or higher level." What is being described?

Correct AnswerverifiedShow Answer

Riboflavin is most easily destroyed when exposed to which of the following?

Correct AnswerverifiedA

Which of the following is a good source of thiamin?

Correct AnswerverifiedShow Answer

Which statement concerning vitamins is FALSE?

Correct AnswerverifiedShow Answer

Beriberi is a disease caused by lack of what vitamin?

Correct AnswerverifiedShow Answer

Which statement best describes the impact of the Canadian folic acid fortification program on neural tube defects?

Correct AnswerverifiedShow Answer

Which of the following does NOT influence the amount of B6 available for proper functioning in the body?

Correct AnswerverifiedShow Answer

Biotin is tightly bound by avidin,which prevents absorption of the vitamin.In what food is avidin commonly found?

Correct AnswerverifiedShow Answer

"Beginning to take folic acid supplements after a pregnancy is confirmed is too late." Why is this statement correct?

Correct AnswerverifiedShow Answer

Pantothenic acid is part of what molecule?

Correct AnswerverifiedA

Many B vitamins are essential for the metabolism of energy-yielding nutrients.In this role,they are components of what type of molecules?

Correct AnswerverifiedShow Answer

Which statement about choline is TRUE?

Correct AnswerverifiedShow Answer

Which statement best describes the criteria used to set the EAR for vitamin C?

Correct AnswerverifiedShow Answer

Which of the following is NOT required for the absorption of vitamin B12?

Correct AnswerverifiedD

Which is not a symptoms of vitamin B6 deficiency?

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Which of the following statements regarding vitamin C is FALSE?

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What is another name for vitamin B6?

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A

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Which of the following does NOT influence the amount of B₆ available for proper functioning in the body?

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A

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Which of the following is NOT required for the absorption of vitamin B₁₂?

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D

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What is another name for vitamin B₆?

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