Question 1

Vitamin A toxicity occurs most frequently when large amounts of _________ is (are)ingested.

Accepted Answer

A) carrot juice 
B) egg yolks 
C) polar bear liver 
D) preformed vitamin A supplements 
A) carrot juice 
B) egg yolks 
C) polar bear liver 
D) preformed vitamin A supplements D

Question 2

Which statement is true about the need for dietary supplements?

Accepted Answer

A) Women of child-bearing age need extra folate. 
B) Supplement use increases overall health in all populations. 
C) Vitamin A should be given in high doses to the elderly. 
D) Vegans usually need supplements of Vitamin A. 
A) Women of child-bearing age need extra folate. 
B) Supplement use increases overall health in all populations. 
C) Vitamin A should be given in high doses to the elderly. 
D) Vegans usually need supplements of Vitamin A. A

Question 3

Vitamin E deficiency in the U.S.is most likely to be a problem in:

Accepted Answer

A) older adults. 
B) premature infants. 
C) teenagers. 
D) pregnant women. 
A) older adults. 
B) premature infants. 
C) teenagers. 
D) pregnant women. B

Question 4

Deficiencies of vitamins _____ and _____ are most common in developing countries.

Accepted Answer

A) A & E 
B) D & K 
C) A & D 
D) E & K 
A) A & E 
B) D & K 
C) A & D 
D) E & K

Question 5

The carotenoid with the most vitamin A activity is ____________.

Accepted Answer

A) beta-carotene 
B) alpha-carotene 
C) beta-cryptoxanthin 
D) lycopene 
A) beta-carotene 
B) alpha-carotene 
C) beta-cryptoxanthin 
D) lycopene

Question 6

Which is true regarding vitamin E in the diet?

Accepted Answer

A) Natural alpha-tocopherol is about twice as active as the synthetic type. 
B) Vitamin E in supplements is identical to the naturally occurring vitamin in foods. 
C) Most nutrition facts panels underestimate the amount of functional vitamin E. 
D) Several naturally occurring forms of vitamin E in foods can be converted with similar efficiencies to the active form of the vitamin. 
A) Natural alpha-tocopherol is about twice as active as the synthetic type. 
B) Vitamin E in supplements is identical to the naturally occurring vitamin in foods. 
C) Most nutrition facts panels underestimate the amount of functional vitamin E. 
D) Several naturally occurring forms of vitamin E in foods can be converted with similar efficiencies to the active form of the vitamin.

Question 7

____________ is an anticoagulant that interferes with the action of vitamin K.

Accepted Answer

A) Cyclosporin 
B) Aspirin 
C) Dicumarol 
D) Penicillin 
A) Cyclosporin 
B) Aspirin 
C) Dicumarol 
D) Penicillin

Question 8

When vitamin A is deficient,all of the following occur EXCEPT:

Accepted Answer

A) new epithelial cells do not differentiate properly. 
B) epithelial cells produce a hard protein found in hair and fingernails. 
C) epithelial cells produce too much mucus. 
D) the likelihood of infection is increased. 
A) new epithelial cells do not differentiate properly. 
B) epithelial cells produce a hard protein found in hair and fingernails. 
C) epithelial cells produce too much mucus. 
D) the likelihood of infection is increased.

Question 9

Vitamin E is essential for:

Accepted Answer

A) fertility. 
B) the prevention of rashes. 
C) the healing of scars. 
D) bone formation. 
A) fertility. 
B) the prevention of rashes. 
C) the healing of scars. 
D) bone formation.

Question 10

Vitamin A is essential for ____________.

Accepted Answer

A) reproduction 
B) growth 
C) immune function 
D) All of these 
A) reproduction 
B) growth 
C) immune function 
D) All of these

Question 11

When vitamin A is deficient,there is a delay in the regeneration of the visual pigment.Which statement is incorrect?

Accepted Answer

A) This condition is called night blindness. 
B) This causes difficulty adapting to dim light after exposure to bright light. 
C) This is one of the first signs of a vitamin A deficiency. 
D) This condition is irreversible. 
A) This condition is called night blindness. 
B) This causes difficulty adapting to dim light after exposure to bright light. 
C) This is one of the first signs of a vitamin A deficiency. 
D) This condition is irreversible.

Question 12

The best way to increase antioxidant intake is to:

Accepted Answer

A) eat more fruits,vegetables,and whole grains. 
B) eat more meat. 
C) consume more dairy foods. 
D) take an antioxidant-containing supplement. 
A) eat more fruits,vegetables,and whole grains. 
B) eat more meat. 
C) consume more dairy foods. 
D) take an antioxidant-containing supplement.

Question 13

The action of sunlight on 7-dehydrocholesterol forms:

Accepted Answer

A) cholecalciferol. 
B) retinol. 
C) parathyroid hormone. 
D) 25-hydroxy vitamin D. 
A) cholecalciferol. 
B) retinol. 
C) parathyroid hormone. 
D) 25-hydroxy vitamin D.

Question 14

Xerophthalmia occurs from:

Accepted Answer

A) high intake of preformed vitamin A. 
B) vitamin A deficiency. 
C) low intake of carrots. 
D) excess consumption of cow's milk. 
A) high intake of preformed vitamin A. 
B) vitamin A deficiency. 
C) low intake of carrots. 
D) excess consumption of cow's milk.

Question 15

Long term use of antibiotics may result in vitamin K deficiency because:

Accepted Answer

A) antibiotics may interfere with absorption of the vitamin. 
B) antibiotics require vitamin K as a co-factor to function properly. 
C) antibiotics may change the bacterial flora in the gut,decreasing vitamin K production. 
D) most antibiotics promote blood clotting,increasing vitamin K requirements. 
A) antibiotics may interfere with absorption of the vitamin. 
B) antibiotics require vitamin K as a co-factor to function properly. 
C) antibiotics may change the bacterial flora in the gut,decreasing vitamin K production. 
D) most antibiotics promote blood clotting,increasing vitamin K requirements.

Question 16

Which statement about canned vegetables is FALSE?

Accepted Answer

A) Canning exposes vegetables to high temperatures,reducing their nutrient content. 
B) Canned vegetables are typically high in salt. 
C) Canned vegetables have a very long shelf life. 
D) Current dietary recommendations are to rarely,if ever,consume canned vegetables. 
A) Canning exposes vegetables to high temperatures,reducing their nutrient content. 
B) Canned vegetables are typically high in salt. 
C) Canned vegetables have a very long shelf life. 
D) Current dietary recommendations are to rarely,if ever,consume canned vegetables.

Question 17

Vitamin A is stable EXCEPT when exposed to:

Accepted Answer

A) heat. 
B) light and oxygen. 
C) cold temperatures such as in a refrigerator. 
D) fat. 
A) heat. 
B) light and oxygen. 
C) cold temperatures such as in a refrigerator. 
D) fat.

Question 18

African Americans are at increased risk of vitamin D deficiency for all of the following reasons EXCEPT:

Accepted Answer

A) their darkly pigmented skin filters out more light. 
B) they spend less time in the sun than people of other ethnic backgrounds. 
C) they consume less milk. 
D) they have a higher incidence of lactose intolerance. 
A) their darkly pigmented skin filters out more light. 
B) they spend less time in the sun than people of other ethnic backgrounds. 
C) they consume less milk. 
D) they have a higher incidence of lactose intolerance.

Question 19

Which of the following is not a role of vitamin E?

Accepted Answer

A) Protects membranes 
B) Maintains the integrity of red blood cells 
C) Protects against some environmental pollutants 
D) Prevents blood clotting 
A) Protects membranes 
B) Maintains the integrity of red blood cells 
C) Protects against some environmental pollutants 
D) Prevents blood clotting

Question 20

Fat soluble vitamins require _______ and _______ for absorption into intestinal cells.

Accepted Answer

A) bile and lymph 
B) lymph and dietary fat 
C) lymph and chylomicrons 
D) bile and dietary fat 
A) bile and lymph 
B) lymph and dietary fat 
C) lymph and chylomicrons 
D) bile and dietary fat

Exam 9: The Fat-Soluble Vitamins

Vitamin A toxicity occurs most frequently when large amounts of _________ is (are)ingested.

Which statement is true about the need for dietary supplements?

Vitamin E deficiency in the U.S.is most likely to be a problem in:

Deficiencies of vitamins _____ and _____ are most common in developing countries.

The carotenoid with the most vitamin A activity is ____________.

Which is true regarding vitamin E in the diet?

____________ is an anticoagulant that interferes with the action of vitamin K.

When vitamin A is deficient,all of the following occur EXCEPT:

Vitamin E is essential for:

Vitamin A is essential for ____________.

When vitamin A is deficient,there is a delay in the regeneration of the visual pigment.Which statement is incorrect?

The best way to increase antioxidant intake is to:

The action of sunlight on 7-dehydrocholesterol forms:

Xerophthalmia occurs from:

Long term use of antibiotics may result in vitamin K deficiency because:

Which statement about canned vegetables is FALSE?

Vitamin A is stable EXCEPT when exposed to:

African Americans are at increased risk of vitamin D deficiency for all of the following reasons EXCEPT:

Which of the following is not a role of vitamin E?

Fat soluble vitamins require _______ and _______ for absorption into intestinal cells.

Nutrition: Food for Health

Nutrition Guidelines: Applying the Science of Nutrition

Digestion, Absorption, and Metabolism

Carbohydrates: Sugars, Starches, and Fiber

Lipids: Triglycerides, Phospholipids, and Cholesterol

Proteins and Amino Acids

Energy Balance and Weight Management

The Water-Soluble Vitamins

Water and the Electrolytes

Major Minerals and Bone Health

The Trace Minerals

Nutrition and Physical Activity

Nutrition During Pregnancy and Lactation

Nutrition From Infancy to Adolescence

Nutrition and Aging: The Adult Years

Food Safety

World Hunger and Malnutrition

Focus on Alcohol

Focus on Eating Disorders

Focus on Phytochemicals

Focus on Nonvitaminnonmineral Supplements

Focus on Biotechnology

Filters

Deficiencies of vitamins _ and _ are most common in developing countries.

Fat soluble vitamins require _ and _ for absorption into intestinal cells.