Question 1

Which mineral is a component of thyroid hormones?

Accepted Answer

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

Question 2

Explain why antioxidants play a role in the proper functioning of the immune system.

Accepted Answer

Phagocytes destroy the organisms that th

Question 3

Among these statements about beriberi,which one is FALSE?

Accepted Answer

A) Beriberi is a deficiency in niacin. 
B) Symptoms of beriberi include nerve tingling and poor coordination. 
C) Acetylcholine synthesis may be impaired with beriberi,explaining the symptoms observed. 
D) All of the above the answers are correct. 
A) Beriberi is a deficiency in niacin. 
B) Symptoms of beriberi include nerve tingling and poor coordination. 
C) Acetylcholine synthesis may be impaired with beriberi,explaining the symptoms observed. 
D) All of the above the answers are correct.

Question 4

Among these statements about nutrients and the neuron function,which one is FALSE?

Accepted Answer

A) Vitamin B6 and B12 are needed for the synthesis and maintenance of the myelin sheath. 
B) Sodium is necessary for the transmission of electrical signals along the axon. 
C) Tryptophan is required for the synthesis of acetylcholine. 
D) Vitamin E helps to maintain the integrity of the cell membrane of the neuron. 
A) Vitamin B6 and B12 are needed for the synthesis and maintenance of the myelin sheath. 
B) Sodium is necessary for the transmission of electrical signals along the axon. 
C) Tryptophan is required for the synthesis of acetylcholine. 
D) Vitamin E helps to maintain the integrity of the cell membrane of the neuron.

Question 5

Which is NOT a symptom of vitamin E deficiency? EXCEPT

Accepted Answer

A) weakness. 
B) increased blood pressure. 
C) poor muscle coordination. 
D) impaired vision. 
A) weakness. 
B) increased blood pressure. 
C) poor muscle coordination. 
D) impaired vision.

Question 6

Which of the following does NOT have a key role in DNA synthesis?

Accepted Answer

A) folate. 
B) vitamin B12. 
C) vitamin K. 
D) phosphorus. 
A) folate. 
B) vitamin B12. 
C) vitamin K. 
D) phosphorus.

Question 7

Which vitamins are involved in DNA synthesis and their deficiencies associated with impaired immune function?

Accepted Answer

A) pantothenic acid and thiamin. 
B) niacin and vitamin B6. 
C) vitamin D and riboflavin. 
D) folate and vitamin B12. 
A) pantothenic acid and thiamin. 
B) niacin and vitamin B6. 
C) vitamin D and riboflavin. 
D) folate and vitamin B12.

Question 8

How does folate participate in the synthesis of the bases that make up DNA?

Accepted Answer

A) it is a constituent of the DNA backbone. 
B) it functions in single carbon transfer. 
C) it functions to ensure that vitamin B12 is available. 
D) it will bind to a specific receptor protein. 
A) it is a constituent of the DNA backbone. 
B) it functions in single carbon transfer. 
C) it functions to ensure that vitamin B12 is available. 
D) it will bind to a specific receptor protein.

Question 9

Which nutrient's function is to increase the formation of macrophages?

Accepted Answer

A) vitamin D 
B) thiamin 
C) iodine 
D) folate 
A) vitamin D 
B) thiamin 
C) iodine 
D) folate

Question 10

Which statement about insulin and the expression of the insulin gene is FALSE?

Accepted Answer

A) High levels of blood glucose in the pancreas increase the expression of the insulin gene. 
B) Zinc plays a role in gene expression by binding to the insulin receptor. 
C) Chromium plays a role in energy metabolism by increasing insulin's ability to promote glucose uptake by cells. 
D) The binding of a derivative of glucose to a nuclear receptor increases the expression of the insulin gene. 
A) High levels of blood glucose in the pancreas increase the expression of the insulin gene. 
B) Zinc plays a role in gene expression by binding to the insulin receptor. 
C) Chromium plays a role in energy metabolism by increasing insulin's ability to promote glucose uptake by cells. 
D) The binding of a derivative of glucose to a nuclear receptor increases the expression of the insulin gene.

Question 11

Which of the following minerals is NOT a component of either a protein in the electron transport chain or ATP?

Accepted Answer

A) iron. 
B) phosphorus. 
C) copper. 
D) zinc. 
A) iron. 
B) phosphorus. 
C) copper. 
D) zinc.

Question 12

Which one of the following enzymes does NOT minimize cellular damage?

Accepted Answer

A) mucosal hyperoxidase. 
B) glutathione peroxidase. 
C) cytoplasmic superoxide dismutase. 
D) mitochondrial superoxide dismutase. 
A) mucosal hyperoxidase. 
B) glutathione peroxidase. 
C) cytoplasmic superoxide dismutase. 
D) mitochondrial superoxide dismutase.

Question 13

Vitamin E,an antioxidant,can be spared by which mineral?

Accepted Answer

A) molybdenum 
B) sulphur 
C) selenium 
D) iodine 
A) molybdenum 
B) sulphur 
C) selenium 
D) iodine

Question 14

Among these statements about fatty acids and the immune system,which one is FALSE?

Accepted Answer

A) The omega-3 fatty acids,EPA and DHA,tend to promote the secretion of anti-inflammatory factors. 
B) Eicosanoids derived from the omega-3 fatty acid arachidonic acid tend to favour inflammatory factors. 
C) EPA and DHA can be synthesized in the body from linoleic acid. 
D) EPA and DHA can be synthesized in the body from alpha-linolenic acid. 
A) The omega-3 fatty acids,EPA and DHA,tend to promote the secretion of anti-inflammatory factors. 
B) Eicosanoids derived from the omega-3 fatty acid arachidonic acid tend to favour inflammatory factors. 
C) EPA and DHA can be synthesized in the body from linoleic acid. 
D) EPA and DHA can be synthesized in the body from alpha-linolenic acid.

Question 15

Why are the symptoms of zinc and vitamin A deficiency similar?

Accepted Answer

A) Because zinc deficiency prevents the expression of genes controlled by retinoic acid. 
B) A deficiency of vitamin A prevents zinc from binds to a protein receptor in the nucleus of the cell. 
C) Zinc deficiency prevents the absorption of vitamin A. 
D) Both zinc and retinal are required in the visual cycle. 
A) Because zinc deficiency prevents the expression of genes controlled by retinoic acid. 
B) A deficiency of vitamin A prevents zinc from binds to a protein receptor in the nucleus of the cell. 
C) Zinc deficiency prevents the absorption of vitamin A. 
D) Both zinc and retinal are required in the visual cycle.

Question 16

Pregnant women increase their risk of having a baby with cretinism if their diet is deficient in which nutrient?

Accepted Answer

A) folate 
B) zinc 
C) iodine 
D) niacin 
A) folate 
B) zinc 
C) iodine 
D) niacin

Question 17

Which fatty acid found in fish oils is important for the development of the brain and eye during the fetal stage and early infancy?

Accepted Answer

A) DHA 
B) EPA 
C) alpha-linolenic acid 
D) linoleic acid 
A) DHA 
B) EPA 
C) alpha-linolenic acid 
D) linoleic acid

Question 18

Which mineral is essential for the synthesis of hemoglobin?

Accepted Answer

A) zinc 
B) iron 
C) sulphur 
D) calcium 
A) zinc 
B) iron 
C) sulphur 
D) calcium

Exam 24: Focus 6: Focus on Integrating Nutrient Function in the Body

Which mineral is a component of thyroid hormones?

Explain why antioxidants play a role in the proper functioning of the immune system.

Among these statements about beriberi,which one is FALSE?

Among these statements about nutrients and the neuron function,which one is FALSE?

Which is NOT a symptom of vitamin E deficiency? EXCEPT

Which of the following does NOT have a key role in DNA synthesis?

Which vitamins are involved in DNA synthesis and their deficiencies associated with impaired immune function?

How does folate participate in the synthesis of the bases that make up DNA?

Which nutrient's function is to increase the formation of macrophages?

Which statement about insulin and the expression of the insulin gene is FALSE?

Which of the following minerals is NOT a component of either a protein in the electron transport chain or ATP?

Which one of the following enzymes does NOT minimize cellular damage?

Vitamin E,an antioxidant,can be spared by which mineral?

Among these statements about fatty acids and the immune system,which one is FALSE?

Why are the symptoms of zinc and vitamin A deficiency similar?

Pregnant women increase their risk of having a baby with cretinism if their diet is deficient in which nutrient?

Which fatty acid found in fish oils is important for the development of the brain and eye during the fetal stage and early infancy?

Which mineral is essential for the synthesis of hemoglobin?

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

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 7: Focus on Eating Disorders

Focus 8: Focus on Biotechnology

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