Question 1

Felicity's LDL cholesterol level is too high.To lower her cholesterol level,she took large doses of a certain vitamin supplement,but she experienced severe facial flushing and liver damage as a result.Based on this information,which vitamin did she take?

Accepted Answer

A) Vitamin C 
B) Riboflavin 
C) B-12 
D) Niacin

Question 2

Which of the following statements is true?

Accepted Answer

A) Skin can form prohormone vitamin D after being exposed to sunlight. 
B) Vitamin D is necessary for proper collagen formation. 
C) Pellagra is the vitamin D deficiency disorder in adults. 
D) Excessive intakes of vitamin D cause rickets in children.

Question 3

Which of the following foods is a good source of vitamin K?

Accepted Answer

A) Citrus fruit 
B) Green leafy vegetables 
C) Enriched breads 
D) Processed poultry products

Question 4

Issac is an 8-year-old child who has African ancestry.He lives in Chicago and does not spend much time outdoors.He does not like to consume dairy foods because he has lactose intolerance.His diet consists primarily of enriched white bread,peanut butter,chicken,pork,apples,bananas,and green vegetables.Based on this information,Issac has a high risk of

Accepted Answer

A) pellagra. 
B) beriberi. 
C) scurvy. 
D) rickets.

Question 5

Blake is a college student whose diet consists primarily of enriched white bread,chicken,meat,cheese,yogurt,and milk.Furthermore,he doesn't take dietary supplements.Based on this information,Blake has a high risk of developing

Accepted Answer

A) neural tube defects. 
B) beriberi. 
C) scurvy. 
D) pellagra.

Question 6

The classic signs and symptoms of pellagra include

Accepted Answer

A) dry cough. 
B) diarrhea. 
C) edema. 
D) night blindness.

Question 7

The liver needs _____ to make certain blood clotting factors.

Accepted Answer

A) vitamin C 
B) vitamin K 
C) homocysteine 
D) riboflavin

Question 8

Jameela is an Iranian woman living in poverty.She is not seen in public places without being covered almost completely in heavy veils.Her usual diet is comprised of legumes,small amounts of yogurt,whole-grain breads and rice,fruits,and a few vegetables.Based on this information,Jameela is most at risk of

Accepted Answer

A) osteomalacia. 
B) scurvy. 
C) beriberi. 
D) pellagra.

Question 9

A deficiency of vitamin _____ results in deterioration of epithelial cells.

Accepted Answer

A) K 
B) A 
C) B-6 
D) B-12

Question 10

_____ are water-soluble vitamins.

Accepted Answer

A) Thiamin,vitamin K,and niacin 
B) Vitamin D,A,and E 
C) Vitamin A,riboflavin,and vitamin C 
D) Pantothenic acid,vitamin C,and thiamin

Question 11

Humans need vitamin B-6 for

Accepted Answer

A) magnesium absorption. 
B) vitamin C synthesis. 
C) carbohydrate excretion. 
D) amino acid metabolism.

Question 12

The classic signs and symptoms of pellagra include

Accepted Answer

A) heartburn. 
B) night blindness. 
C) dermatitis. 
D) weak bones.

Question 13

When consumed with certain plant foods,vitamin C enhances the absorption of

Accepted Answer

A) calcium. 
B) iron. 
C) riboflavin. 
D) niacin.

Question 14

Sonya has a chronic illness,and to treat the condition,she takes an antibiotic every day.Despite her illness,Sonya's diet is nutritionally adequate,and she exercises regularly.Based on this information,Sonya may need to

Accepted Answer

A) take a dietary supplement that contains biotin. 
B) eat more vitamin-C rich foods. 
C) reduce her protein intake. 
D) consume fewer foods that contain omega-3 fatty acids.

Question 15

As a result of an inherited metabolic defect,Christopher's cells have difficulty converting homocysteine to

Accepted Answer

A) cysteine. 
B) tryptophan. 
C) folate. 
D) vitamin B-6.

Question 16

Marta is a teenager who doesn't eat fruits and vegetables.Her diet consists primarily of chicken,cottage cheese,yogurt,enriched bread,and butter.Furthermore,she doesn't take dietary supplements.Based on this information,Marta has a high risk of

Accepted Answer

A) beriberi. 
B) osteomalacia. 
C) pellagra. 
D) scurvy.

Question 17

Which of the following foods is a rich source of vitamin C?

Accepted Answer

A) Chicken 
B) Eggs 
C) Papaya 
D) Whole-wheat bread

Question 18

Which of the following vitamins is not added to refined grain products as part of the enrichment process?

Accepted Answer

A) Folic acid 
B) Niacin 
C) Thiamin 
D) Vitamin B-6

Question 19

Which of the following food groups includes foods that are among the best sources of riboflavin?

Accepted Answer

A) Fruit 
B) Grains 
C) Oils 
D) Vegetables

Question 20

Sean has carpal tunnel syndrome.A few months ago,he began taking megadoses of vitamin B-6,when he read that the vitamin can cure the disorder.Today,Sean reported to his friends that his hands were feeling numb and his walking is unsteady.Based on this information,Sean should

Accepted Answer

A) continue taking the megadoses of vitamin B-6,because his body needs more time to heal. 
B) discontinue taking vitamin B-6,because his body does not require the micronutrient. 
C) increase his vitamin B-6 intake,because the numbness and unsteadiness are signs that the treatment is working. 
D) stop taking vitamin B-6,because he is showing signs and symptoms of vitamin B-6 toxicity.

Exam 8: Vitamins

Felicity's LDL cholesterol level is too high.To lower her cholesterol level,she took large doses of a certain vitamin supplement,but she experienced severe facial flushing and liver damage as a result.Based on this information,which vitamin did she take?

Which of the following statements is true?

Which of the following foods is a good source of vitamin K?

Blake is a college student whose diet consists primarily of enriched white bread,chicken,meat,cheese,yogurt,and milk.Furthermore,he doesn't take dietary supplements.Based on this information,Blake has a high risk of developing

The classic signs and symptoms of pellagra include

The liver needs _____ to make certain blood clotting factors.

A deficiency of vitamin _____ results in deterioration of epithelial cells.

_____ are water-soluble vitamins.

Humans need vitamin B-6 for

The classic signs and symptoms of pellagra include

When consumed with certain plant foods,vitamin C enhances the absorption of

Sonya has a chronic illness,and to treat the condition,she takes an antibiotic every day.Despite her illness,Sonya's diet is nutritionally adequate,and she exercises regularly.Based on this information,Sonya may need to

As a result of an inherited metabolic defect,Christopher's cells have difficulty converting homocysteine to

Marta is a teenager who doesn't eat fruits and vegetables.Her diet consists primarily of chicken,cottage cheese,yogurt,enriched bread,and butter.Furthermore,she doesn't take dietary supplements.Based on this information,Marta has a high risk of

Which of the following foods is a rich source of vitamin C?

Which of the following vitamins is not added to refined grain products as part of the enrichment process?

Which of the following food groups includes foods that are among the best sources of riboflavin?

Sean has carpal tunnel syndrome.A few months ago,he began taking megadoses of vitamin B-6,when he read that the vitamin can cure the disorder.Today,Sean reported to his friends that his hands were feeling numb and his walking is unsteady.Based on this information,Sean should