Question 1

Intrinsic factor is produced by the

Accepted Answer

A)  beta-cells of the pancreas.
B)  salivary glands.
C)  parietal cells of the stomach.
D)  enterocytes of the small intestine.E) B) and C)
F) C) and D)

Question 2

Which meal contains the highest amount of vitamin C?

Accepted Answer

A)  Hamburger sandwich,french fries,and cola
B)  Meat loaf,mashed potatoes and gravy,and diet cola
C)  Baked fish with lemon,broccoli,cole slaw,and strawberries
D)  Roast beef,carrots,noodles,and coffeeE) B) and C)
F) A) and D)

Question 3

Rich sources of choline are

Accepted Answer

A)  enriched cereals and grains.
B)  fats and oils.
C)  meats,eggs,and dairy products.
D)  fruits and vegetables.E) B) and D)
F) All of the above

Question 4

Neurotransmitter synthesis requires the vitamin B-6 coenzyme.Which of the following is classified as a neurotransmitter?

Accepted Answer

A)  norepinephrine
B)  gamma-aminobutyric acid (GAB
A)  
C)  serotonin
D)  All of these choices are accurate.E) B) and D)
F) All of the above

Question 5

Which of the foods listed below has the lowest niacin bioavailability?

Accepted Answer

A)  wheat
B)  corn
C)  almonds
D)  spinachE) B) and C)
F) A) and C)

Question 6

Most B-vitamins function as

Accepted Answer

A)  fat-soluble vitamins.
B)  coenzymes.
C)  antibodies.
D)  sources of energy.E) A) and B)
F) A) and C)

Question 7

Which of the following factors can interfere with the absorption of vitamin B-12?

Accepted Answer

A)  Surgical removal of the stomach
B)  Defective R-protein synthesis
C)  Infections of the ileum or surgical removal of the ileum
D)  All of these choices are accurate.E) None of the above
F) All of the above

Question 8

Megaloblastic anemia develops as a result of deficiencies of ________ and _____.

Accepted Answer

A)  thiamin; riboflavin.
B)  vitamin B-6; folate.
C)  folate; vitamin B-12.
D)  vitamin K; folate.
E)  All of these choices are accurate.F) B) and E)
G) B) and D)

Question 9

Which group of individuals is advised to consume 400 micrograms of folic acid daily from supplements and/or fortified foods?

Accepted Answer

A)  infants
B)  the elderly
C)  athletes
D)  women capable of becoming pregnantE) B) and C)
F) B) and D)

Question 10

In addition to its role in amino acid metabolism,vitamin B-6 is also required for

Accepted Answer

A)  fatty acid metabolism.
B)  the release of glucose from glycogen.
C)  the electron transport chain.
D)  glycolysis.E) B) and D)
F) None of the above

Question 11

Physiological changes associated with scurvy (hemorrhages,joint pain,fractures) are caused by

Accepted Answer

A)  defective collagen synthesis.
B)  inadequate production of the hormone thyroxine.
C)  failure to synthesize neurotransmitters.
D)  impaired function of the citric acid cycle.E) A) and D)
F) A) and B)

Question 12

Flushing of the face and skin can result from pharmacological doses of

Accepted Answer

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

Question 13

In general,excess amounts of water-soluble vitamins are excreted via the

Accepted Answer

A)  kidneys.
B)  intestine.
C)  lungs.
D)  skin.E) A) and C)
F) B) and D)

Question 14

The vitamin that prevents beriberi is

Accepted Answer

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

Question 15

A good way to reduce risk of cardiovascular disease is to take supplements of vitamin B-6,vitamin B-12,folic acid,and vitamin
C.

Accepted Answer

A) True 
 B)False

Question 16

Thiamin,niacin,and riboflavin work together in important biochemical pathways that

Accepted Answer

A)  synthesize collagen.
B)  control the visual process.
C)  promote absorption of calcium.
D)  release energy from carbohydrate,fat,and protein.E) All of the above
F) C) and D)

Question 17

Describe the symptoms of thiamin deficiency.

Accepted Answer

Thiamin deficiency, also known as beribe...

Question 18

Folate in foods can be destroyed by

Accepted Answer

A)  food processing and preparation.
B)  ultraviolet light.
C)  oxidation.
D)  All of these choices are accurate.E) None of the above
F) C) and D)

Question 19

The best sources of thiamin in the average diet are

Accepted Answer

A)  pork products,whole or enriched grains and cereals,and legumes.
B)  root vegetables and cheddar-type cheese.
C)  whole grains and fresh fruit.
D)  ham and vegetables of the cabbage family.E) A) and B)
F) A) and D)

Question 20

The B-vitamin most easily destroyed by exposure to light is

Accepted Answer

A)  biotin.
B)  niacin.
C)  riboflavin.
D)  thiamin.E) A) and B)
F) All of the above

Exam 13: The Water-Soluble Vitamins

In general,excess amounts of water-soluble vitamins are excreted via the

Correct AnswerverifiedShow Answer

Flushing of the face and skin can result from pharmacological doses of

Correct AnswerverifiedShow Answer

A good way to reduce risk of cardiovascular disease is to take supplements of vitamin B-6,vitamin B-12,folic acid,and vitamin C.

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Which meal contains the highest amount of vitamin C?

Correct AnswerverifiedShow Answer

Rich sources of choline are

Correct AnswerverifiedShow Answer

Most B-vitamins function as

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Which of the following factors can interfere with the absorption of vitamin B-12?

Correct AnswerverifiedShow Answer

The best sources of thiamin in the average diet are

Correct AnswerverifiedShow Answer

Megaloblastic anemia develops as a result of deficiencies of ________ and _____.

Correct AnswerverifiedShow Answer

Physiological changes associated with scurvy (hemorrhages,joint pain,fractures) are caused by

Correct AnswerverifiedShow Answer

The B-vitamin most easily destroyed by exposure to light is

Correct AnswerverifiedShow Answer

Thiamin,niacin,and riboflavin work together in important biochemical pathways that

Correct AnswerverifiedShow Answer

Which of the foods listed below has the lowest niacin bioavailability?

Correct AnswerverifiedShow Answer

Describe the symptoms of thiamin deficiency.

Correct AnswerAnswered by ExamLex AIThiamin deficiency, also known as beribe...View AnswerShow Answer

Which group of individuals is advised to consume 400 micrograms of folic acid daily from supplements and/or fortified foods?

Correct AnswerverifiedShow Answer

Neurotransmitter synthesis requires the vitamin B-6 coenzyme.Which of the following is classified as a neurotransmitter?

Correct AnswerverifiedShow Answer

Folate in foods can be destroyed by

Correct AnswerverifiedShow Answer

In addition to its role in amino acid metabolism,vitamin B-6 is also required for

Correct AnswerverifiedShow Answer

The vitamin that prevents beriberi is

Correct AnswerverifiedShow Answer

Intrinsic factor is produced by the

Correct AnswerverifiedShow Answer

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Megaloblastic anemia develops as a result of deficiencies of ____ and _.

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Thiamin deficiency, also known as beribe...
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