Question 1

Which of the following is NOT a function of vitamin A?

Accepted Answer

A) red blood cell formation 
B) regulating gene expression 
C) normal reproduction and growth 
D) immune system support 
A) red blood cell formation 
B) regulating gene expression 
C) normal reproduction and growth 
D) immune system support

Question 2

Which of the following is NOT a direct action of vitamin D?

Accepted Answer

A) removing calcium from the blood for deposit in bone tissue. 
B) increasing the expression of genes that produce intestinal calcium transport proteins. 
C) promoting the breakdown of bone tissue to release calcium into the blood. 
D) increasing the retention of calcium by the kidneys. 
A) removing calcium from the blood for deposit in bone tissue. 
B) increasing the expression of genes that produce intestinal calcium transport proteins. 
C) promoting the breakdown of bone tissue to release calcium into the blood. 
D) increasing the retention of calcium by the kidneys.

Question 3

Which statement about fat-soluble vitamins is FALSE?

Accepted Answer

A) Fat-soluble vitamins can be stored in the body. 
B) Fat-soluble vitamins must be consumed daily to prevent deficiency. 
C) The intake of fat-soluble vitamins can vary without risking deficiency as long as the average intake is adequate. 
D) After absorption,fat-soluble vitamins are transported in the lymphatic system. 
A) Fat-soluble vitamins can be stored in the body. 
B) Fat-soluble vitamins must be consumed daily to prevent deficiency. 
C) The intake of fat-soluble vitamins can vary without risking deficiency as long as the average intake is adequate. 
D) After absorption,fat-soluble vitamins are transported in the lymphatic system.

Question 4

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) synthesizes niacin from tryptophan 
A) protects membranes 
B) maintains the integrity of red blood cells 
C) protects against some environmental pollutants 
D) synthesizes niacin from tryptophan

Question 5

Which of the following does NOT increase the risk of vitamin D deficiency?

Accepted Answer

A) Increased skin pigmentation. 
B) Increased consumption of fatty fish 
C) Low milk consumption 
D) Less time spent in the sun 
A) Increased skin pigmentation. 
B) Increased consumption of fatty fish 
C) Low milk consumption 
D) Less time spent in the sun

Question 6

What is the primary function of vitamin D in the body?

Accepted Answer

A) prevent anemia. 
B) regulate calcium and phosphorus levels. 
C) regulate iron levels in the body. 
D) support night vision. 
A) prevent anemia. 
B) regulate calcium and phosphorus levels. 
C) regulate iron levels in the body. 
D) support night vision.

Question 7

Vitamin K is needed to produce prothrombin.What is this protein's function?

Accepted Answer

A) antioxidant functions. 
B) blood clotting. 
C) bone calcification. 
D) night vision. 
A) antioxidant functions. 
B) blood clotting. 
C) bone calcification. 
D) night vision.

Question 8

Which vitamin is referred to as the "sunshine vitamin"?

Accepted Answer

A) vitamin A 
B) vitamin D 
C) vitamin E 
D) vitamin K 
A) vitamin A 
B) vitamin D 
C) vitamin E 
D) vitamin K

Question 9

As the intake of polyunsaturated fats increases,how is the need for vitamin E affected?

Accepted Answer

A) it increases. 
B) it decreases. 
C) it is unaffected. 
D) increases,then decreases. 
A) it increases. 
B) it decreases. 
C) it is unaffected. 
D) increases,then decreases.

Question 10

What is required for fat-soluble vitamins to be absorbed?

Accepted Answer

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

Question 11

For what is Vitamin E essential?

Accepted Answer

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

Question 12

Which function of vitamin E has been hypothesized to reduce the risk of heart disease?

Accepted Answer

A) Increased platelet "stickiness" 
B) Increased VLDL levels 
C) Decreased LDL oxidation 
D) Decreased HDL levels 
A) Increased platelet "stickiness" 
B) Increased VLDL levels 
C) Decreased LDL oxidation 
D) Decreased HDL levels

Question 13

Which carotenoid has the most vitamin A activity?

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 14

Vitamin A is essential for which of the following functions in the body?

Accepted Answer

A) normal reproduction 
B) normal growth 
C) immune function 
D) All of the above answer choices are correct. 
A) normal reproduction 
B) normal growth 
C) immune function 
D) All of the above answer choices are correct.

Question 15

If dietary calcium is unavailable,vitamin D acts together with which hormone to increase the amount of calcium retained by the kidneys?

Accepted Answer

A) parathyroid hormone 
B) anti-diuretic hormone 
C) aldosterone 
D) cortisol 
A) parathyroid hormone 
B) anti-diuretic hormone 
C) aldosterone 
D) cortisol

Question 16

Which of the following statements regarding the RDA for vitamin D intake is NOT correct?

Accepted Answer

A) supplements are recommended for breastfed infants. 
B) it is higher for adults 70 and older,than for younger adults. 
C) it is lower for women during pregnancy,than for non-pregnant women 
D) it assumes no vitamin D is synthesized in the skin. 
A) supplements are recommended for breastfed infants. 
B) it is higher for adults 70 and older,than for younger adults. 
C) it is lower for women during pregnancy,than for non-pregnant women 
D) it assumes no vitamin D is synthesized in the skin.

Question 17

Which of the fat-soluble vitamins can be synthesized by bacteria in the intestine?

Accepted Answer

A) vitamin A 
B) vitamin D 
C) vitamin E 
D) vitamin K 
A) vitamin A 
B) vitamin D 
C) vitamin E 
D) vitamin K

Question 18

Which statement best distinguishes between retinoids and carotenoids?

Accepted Answer

A) Retinoids are found in plant products and include retinoic acid,while carotenoids are found in animal products.. 
B) Retinoids are found in animal products such as milk and egg yolks,while carotenoids are found in green and orange vegetables. 
C) Carotenoids are found in animal products such as cheese,while retinoids are found in fruits and vegetables. 
D) Carotenoids such as lycopene and lutein have vitamin A activity,while retinoids such as retinal have no vitamin A activity. 
A) Retinoids are found in plant products and include retinoic acid,while carotenoids are found in animal products.. 
B) Retinoids are found in animal products such as milk and egg yolks,while carotenoids are found in green and orange vegetables. 
C) Carotenoids are found in animal products such as cheese,while retinoids are found in fruits and vegetables. 
D) Carotenoids such as lycopene and lutein have vitamin A activity,while retinoids such as retinal have no vitamin A activity.

Question 19

Which statement about frozen food is FALSE?

Accepted Answer

A) The process of freezing vegetables can cause some nutrient losses. 
B) Fresh produce from the grocery store always has more nutrients than frozen produce. 
C) Produce is often frozen in the fields where it is grown. 
D) Freezing stops the loss of nutrients caused by time and exposure to heat,light,and air. 
A) The process of freezing vegetables can cause some nutrient losses. 
B) Fresh produce from the grocery store always has more nutrients than frozen produce. 
C) Produce is often frozen in the fields where it is grown. 
D) Freezing stops the loss of nutrients caused by time and exposure to heat,light,and air.

Question 20

In the liver,vitamin E is incorporated into which lipoprotein?

Accepted Answer

A) chylomicrons 
B) VLDL 
C) LDL 
D) HDL 
A) chylomicrons 
B) VLDL 
C) LDL 
D) HDL

Exam 9: The Fat-Soluble Vitamins

Which of the following is NOT a function of vitamin A?

Which of the following is NOT a direct action of vitamin D?

Which statement about fat-soluble vitamins is FALSE?

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

Which of the following does NOT increase the risk of vitamin D deficiency?

What is the primary function of vitamin D in the body?

Vitamin K is needed to produce prothrombin.What is this protein's function?

Which vitamin is referred to as the "sunshine vitamin"?

As the intake of polyunsaturated fats increases,how is the need for vitamin E affected?

What is required for fat-soluble vitamins to be absorbed?

For what is Vitamin E essential?

Which function of vitamin E has been hypothesized to reduce the risk of heart disease?

Which carotenoid has the most vitamin A activity?

Vitamin A is essential for which of the following functions in the body?

If dietary calcium is unavailable,vitamin D acts together with which hormone to increase the amount of calcium retained by the kidneys?

Which of the following statements regarding the RDA for vitamin D intake is NOT correct?

Which of the fat-soluble vitamins can be synthesized by bacteria in the intestine?

Which statement best distinguishes between retinoids and carotenoids?

Which statement about frozen food is FALSE?

In the liver,vitamin E is incorporated into which lipoprotein?

Nutrition: Food for Health

Nutrition Guidelines: Applying the Science of Nutrition

Digestion, Absorption, and Metabolism

Carbohydrates: Sugars, Starches, and Fibre

Lipids

Proteins and Amino Acids

Energy Balance and Weight Management

A: the Water-Soluble Vitamins

Water and the Electrolytes

Major Minerals and Bone Health

The Trace Elements

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 1: Focus on Beyond the Basics

Focus 2: Focus on Alcohol

Focus 3: Focus on Obesity, Metabolism, and Disease Risk

Focus 4: Focus on Phytochemicals

Focus5:focus on Natural Health Products

Focus 6: Focus on Integrating Nutrient Function in the Body

Focus 7: Focus on Eating Disorders

Focus 8: Focus on Biotechnology

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