Question 1

Dorothy is a 65-year-old woman with pernicious anemi A.What treatment would her doctor recommend?

Accepted Answer

A) A vegan diet 
B) Iron supplements 
C) Vitamin C supplements 
D) Vitamin B-12 injections

Question 2

Adding a small amount of _____ to cooked vegetables can enhance the intestinal tract's ability to absorb the fat-soluble vitamins they contain.

Accepted Answer

A) water 
B) wine 
C) butter 
D) sugar

Question 3

Sam wants to lower his risk of colorectal cancer.According to scientific studies,consuming ____ may increase his risk of this chronic disease.

Accepted Answer

A) citrus fruit 
B) onions 
C) processed meats 
D) Brussels sprouts

Question 4

Which of the following substances is classified as "vitamin-like" for humans?

Accepted Answer

A) Pantothenic acid 
B) Choline 
C) Biotin 
D) Riboflavin

Question 5

Which of the following foods is not a good source of vitamin E?

Accepted Answer

A) Whole grains 
B) Ground beef 
C) Sunflower seeds 
D) Safflower oil

Question 6

Which of the following vitamins is part of a coenzyme that participates in energy metabolism?

Accepted Answer

A) Vitamin A 
B) Vitamin K 
C) Ascorbic acid 
D) Pantothenic acid

Question 7

The human body can absorb some of the _____ that is synthesized by intestinal bacteri A.

Accepted Answer

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

Question 8

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

Question 9

_____ are water-soluble vitamins.

Accepted Answer

A) Vitamins K,D,and E 
B) Niacin,riboflavin,and thiamin 
C) Vitamins B-12,B-6,and E 
D) Pantothenic acid,vitamin A,and choline

Question 10

______ prevent or limit the ability of free radicals to damage polyunsaturated fatty acids and DNA in cells.

Accepted Answer

A) Antidotes 
B) Phosphates 
C) Oxidizing agents 
D) Antioxidants

Question 11

Matt is a vegan.As a result of his diet,he consumes no sources of preformed vitamin A D.Matt eats plenty of vitamin B-enriched cereal products.

Accepted Answer

A) Which of the following statements explains why he has not developed a deficiency of vitamin A? A.Matt's diet contain high amounts of tryptophan. 
B) Matt's diet supplies high amounts of beta-carotene. 
C) Matt's diet is rich in vitamin C,which reduces his need for vitamin

Question 12

Jamal wants to lower his risk of cancer.He should ________.

Accepted Answer

A) reduce his coffee intake 
B) drink less water 
C) avoid drinking alcohol 
D) reduce his fiber intake

Question 13

On sunny days,Juan spends at least 20 minutes exercising outdoors,because he knows sunlight helps his body make _________.

Accepted Answer

A) choline 
B) vitamin D 
C) copper 
D) glucose

Question 14

An early symptom of vitamin A deficiency is ________.

Accepted Answer

A) night blindness 
B) swollen tongue 
C) headaches 
D) hair loss

Question 15

When cooking green beans,Lenny likes to add baking soda to the cooking water,because it keeps the color of the beans from turning olive green.As a result of this practice,Lenny's green beans have _____ than green beans cooked in plain water.

Accepted Answer

A) more essential amino acids 
B) fewer kilocalories 
C) less vitamin C 
D) greater fatty acid content

Question 16

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

Accepted Answer

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

Question 17

_____ are fat-soluble vitamins.

Accepted Answer

A) Vitamins K,D,and A 
B) Niacin,riboflavin,and thiamin 
C) Pantothenic acid,vitamin E,and choline 
D) Vitamins B-12,B-6,and E

Question 18

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) pellagra 
B) scurvy 
C) beriberi 
D) osteomalacia

Question 19

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

Accepted Answer

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

Question 20

____ is a carcinogen.

Accepted Answer

A) Alcohol 
B) Whole milk 
C) White bread 
D) Cholesterol

Exam 8: Vitamins