Question 1

What is the role of selenium in Keshan disease?

Accepted Answer

Keshan disease has been linked

Question 2

Which of the following trace elements is NOT a component of an antioxidant enzyme?

Accepted Answer

A) copper 
B) iodine 
C) selenium 
D) zinc 
A) copper 
B) iodine 
C) selenium 
D) zinc

Question 3

Why are refined grains a poor source of chromium?

Accepted Answer

A) Fortification programs only partly replace the chromium lost during the milling process.. 
B) There are no fortification programs to replace the chromium lost during the milling process. 
C) During cooking the chromium binds with starch reducing its bioavailability. 
D) When cooking the chromium becomes insoluble and cannot be absorbed. 
A) Fortification programs only partly replace the chromium lost during the milling process.. 
B) There are no fortification programs to replace the chromium lost during the milling process. 
C) During cooking the chromium binds with starch reducing its bioavailability. 
D) When cooking the chromium becomes insoluble and cannot be absorbed.

Question 4

Which is an example of a selenoprotein?

Accepted Answer

A) Thyroid hormone 
B) keshan 
C) glutathione peroxidase 
D) metallothionein 
A) Thyroid hormone 
B) keshan 
C) glutathione peroxidase 
D) metallothionein

Question 5

"To ensure iron needs are met,the total diet needs to be considered." Explain why?

Accepted Answer

A) Because iron is present in small amounts in many different foods. 
B) Because iron is present in large amounts in only a small number of foods,so food choices have to be made carefully. 
C) Because supplements are required in addition to food,for populations at risk. 
D) Because fortified foods can make an important contribution to iron intake. 
A) Because iron is present in small amounts in many different foods. 
B) Because iron is present in large amounts in only a small number of foods,so food choices have to be made carefully. 
C) Because supplements are required in addition to food,for populations at risk. 
D) Because fortified foods can make an important contribution to iron intake.

Question 6

Which of the following would NOT enhance absorption of the iron found in supplements?

Accepted Answer

A) taking the supplement at a meal containing beef 
B) taking the supplement with a calcium supplement 
C) taking the supplement at a meal containing fish 
D) taking the supplement with orange juice 
A) taking the supplement at a meal containing beef 
B) taking the supplement with a calcium supplement 
C) taking the supplement at a meal containing fish 
D) taking the supplement with orange juice

Question 7

Which is the best indicator of iron stores in the body?

Accepted Answer

A) ferritin 
B) hematocrit 
C) hemoglobin 
D) transferrin 
A) ferritin 
B) hematocrit 
C) hemoglobin 
D) transferrin

Question 8

Which of the following trace elements is needed to activate enzymes and in the production of uric acid?

Accepted Answer

A) chromium 
B) molybdenum 
C) selenium 
D) zinc 
A) chromium 
B) molybdenum 
C) selenium 
D) zinc

Question 9

Iron is a component of the protein which binds and transports oxygen in the bloodstream.Which protein is being described?

Accepted Answer

A) ferritin 
B) hematocrit 
C) hemoglobin 
D) myoglobin 
A) ferritin 
B) hematocrit 
C) hemoglobin 
D) myoglobin

Question 10

Chromium deficiency has been linked to which condition?

Accepted Answer

A) breast cancer. 
B) polio. 
C) stroke. 
D) type 2 diabetes. 
A) breast cancer. 
B) polio. 
C) stroke. 
D) type 2 diabetes.

Question 11

How does zinc reduce oxidative stress?

Accepted Answer

A) Zinc is required for the enzyme catalase to function properly. 
B) Zinc is the only trace element required for the function of superoxide dismutase. 
C) Zinc,along with copper,are required for the function of superoxide dismutase. 
D) Zinc is required for enzymes to bind to DNA. 
A) Zinc is required for the enzyme catalase to function properly. 
B) Zinc is the only trace element required for the function of superoxide dismutase. 
C) Zinc,along with copper,are required for the function of superoxide dismutase. 
D) Zinc is required for enzymes to bind to DNA.

Question 12

Which of the following is a good source of zinc?

Accepted Answer

A) Almonds 
B) Bananas 
C) Chocolate 
D) Red meat 
A) Almonds 
B) Bananas 
C) Chocolate 
D) Red meat

Question 13

What is the source of most of the fluoride consumed by Canadians?

Accepted Answer

A) drinking water and toothpaste. 
B) dark green and yellow vegetables. 
C) tea. 
D) seafood and treated salt. 
A) drinking water and toothpaste. 
B) dark green and yellow vegetables. 
C) tea. 
D) seafood and treated salt.

Question 14

Lack of which trace element is the most common nutritional deficiency worldwide?

Accepted Answer

A) copper 
B) iodine 
C) iron 
D) zinc 
A) copper 
B) iodine 
C) iron 
D) zinc

Question 15

Which of the following statements regarding copper is TRUE?

Accepted Answer

A) A copper deficiency usually causes iron deficiency anemia. 
B) A copper deficiency usually causes a zinc deficiency. 
C) Too much copper can cause osteoporosis. 
D) Too much copper can cause changes in hair colour. 
A) A copper deficiency usually causes iron deficiency anemia. 
B) A copper deficiency usually causes a zinc deficiency. 
C) Too much copper can cause osteoporosis. 
D) Too much copper can cause changes in hair colour.

Question 16

Which is NOT a symptom of zinc deficiency?

Accepted Answer

A) hair loss. 
B) impaired reproduction. 
C) anemia. 
D) reduced immune function. 
A) hair loss. 
B) impaired reproduction. 
C) anemia. 
D) reduced immune function.

Question 17

Which of the following is NOT a factor in determining the absorption of iron?

Accepted Answer

A) body's blood glucose level 
B) body's need for iron 
C) presence/absence of copper in the body 
D) form of iron ingested 
A) body's blood glucose level 
B) body's need for iron 
C) presence/absence of copper in the body 
D) form of iron ingested

Question 18

In what way is manganese homeostasis maintained?

Accepted Answer

A) increasing absorption when intake is high. 
B) increasing excretion when intake is low. 
C) decreasing absorption when intake is high. 
D) competition with other minerals. 
A) increasing absorption when intake is high. 
B) increasing excretion when intake is low. 
C) decreasing absorption when intake is high. 
D) competition with other minerals.

Question 19

How would a diet low in selenium affect a cell's ability to deal with oxidative stress?

Accepted Answer

A) Low selenium will reduce levels of superoxide dismutase,an enzyme that converts hydrogen peroxide to water.This will increase the need for vitamin E. 
B) Low selenium will reduce levels of glutathione peroxidase,an enzyme that converts hydrogen peroxide to water.This will increase the need for vitamin E and vitamin C. 
C) Low selenium will increase levels of glutathione peroxidase,an enzyme that converts hydrogen peroxide to water.This will decrease the need for vitamin E and vitamin C 
D) Low selenium will reduce levels of glutathione peroxidase,an enzyme that converts water to hydrogen peroxide.This will increase the need for vitamin C. 
A) Low selenium will reduce levels of superoxide dismutase,an enzyme that converts hydrogen peroxide to water.This will increase the need for vitamin E. 
B) Low selenium will reduce levels of glutathione peroxidase,an enzyme that converts hydrogen peroxide to water.This will increase the need for vitamin E and vitamin C. 
C) Low selenium will increase levels of glutathione peroxidase,an enzyme that converts hydrogen peroxide to water.This will decrease the need for vitamin E and vitamin C 
D) Low selenium will reduce levels of glutathione peroxidase,an enzyme that converts water to hydrogen peroxide.This will increase the need for vitamin C.

Question 20

Iodine deficiency during pregnancy causes which condition in the infant?

Accepted Answer

A) cretinism 
B) diabetes 
C) fetal goiter syndrome 
D) hypoglycemia 
A) cretinism 
B) diabetes 
C) fetal goiter syndrome 
D) hypoglycemia

Exam 12: The Trace Elements

What is the role of selenium in Keshan disease?

Which of the following trace elements is NOT a component of an antioxidant enzyme?

Why are refined grains a poor source of chromium?

Which is an example of a selenoprotein?

"To ensure iron needs are met,the total diet needs to be considered." Explain why?

Which of the following would NOT enhance absorption of the iron found in supplements?

Which is the best indicator of iron stores in the body?

Which of the following trace elements is needed to activate enzymes and in the production of uric acid?

Iron is a component of the protein which binds and transports oxygen in the bloodstream.Which protein is being described?

Chromium deficiency has been linked to which condition?

How does zinc reduce oxidative stress?

Which of the following is a good source of zinc?

What is the source of most of the fluoride consumed by Canadians?

Lack of which trace element is the most common nutritional deficiency worldwide?

Which of the following statements regarding copper is TRUE?

Which is NOT a symptom of zinc deficiency?

Which of the following is NOT a factor in determining the absorption of iron?

In what way is manganese homeostasis maintained?

How would a diet low in selenium affect a cell's ability to deal with oxidative stress?

Iodine deficiency during pregnancy causes which condition in the infant?

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

The Fat-Soluble Vitamins

Water and the Electrolytes

Major Minerals and Bone Health

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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