Question 1

Which statement about niacin is true?

Accepted Answer

A) There is no UL established for niacin intake. 
B) Niacin is important in the production of energy from dietary nutrients. 
C) Niacin deficiency causes adverse effects in limited areas of the body. 
D) Niacin is needed to synthesize tryptophan. 
A) There is no UL established for niacin intake. 
B) Niacin is important in the production of energy from dietary nutrients. 
C) Niacin deficiency causes adverse effects in limited areas of the body. 
D) Niacin is needed to synthesize tryptophan. B

Question 2

Which statement concerning vitamins is incorrect?

Accepted Answer

A) Vitamins are organic compounds. 
B) If a vitamin is not provided by the diet,the body will synthesize it. 
C) The vitamin content of a food may be affected by cooking and processing. 
D) Vitamins are essential for growth,reproduction and health. 
A) Vitamins are organic compounds. 
B) If a vitamin is not provided by the diet,the body will synthesize it. 
C) The vitamin content of a food may be affected by cooking and processing. 
D) Vitamins are essential for growth,reproduction and health. B

Question 3

Another name for vitamin B6 is:

Accepted Answer

A) pantothenic acid. 
B) biotin. 
C) pyruvate. 
D) pyridoxine. 
A) pantothenic acid. 
B) biotin. 
C) pyruvate. 
D) pyridoxine. D

Question 4

Many B vitamins function as ______,which bind to enzymes to promote their activity.

Accepted Answer

A) provitamins 
B) transport proteins 
C) coenzymes 
D) hormones 
A) provitamins 
B) transport proteins 
C) coenzymes 
D) hormones

Question 5

A primary function of thiamin is to:

Accepted Answer

A) increase iron incorporation into hemoglobin. 
B) regulate cell differentiation. 
C) promote blood clotting. 
D) facilitate the production of energy from glucose. 
A) increase iron incorporation into hemoglobin. 
B) regulate cell differentiation. 
C) promote blood clotting. 
D) facilitate the production of energy from glucose.

Question 6

Folate deficiency symptoms are less of a problem recently because:

Accepted Answer

A) grain products are now fortified with folate. 
B) green tea is more popular. 
C) more people are drinking low-fat milk. 
D) taking vitamin supplements is more common. 
A) grain products are now fortified with folate. 
B) green tea is more popular. 
C) more people are drinking low-fat milk. 
D) taking vitamin supplements is more common.

Question 7

The symptom(s)of thiamin deficiency best explained by its role in glucose metabolism are:

Accepted Answer

A) depression and weakness. 
B) paralysis. 
C) hunger. 
D) atherosclerosis. 
A) depression and weakness. 
B) paralysis. 
C) hunger. 
D) atherosclerosis.

Question 8

Which is the best source of vitamin C?

Accepted Answer

A) Strawberries 
B) Corn 
C) Milk 
D) Beef 
A) Strawberries 
B) Corn 
C) Milk 
D) Beef

Question 9

Which of the following does NOT affect thiamin availability in food?

Accepted Answer

A) Presence of other vitamins 
B) Enzymes found in raw fish 
C) Compounds found in blueberries,tea and coffee 
D) Heat,as generated in cooking 
A) Presence of other vitamins 
B) Enzymes found in raw fish 
C) Compounds found in blueberries,tea and coffee 
D) Heat,as generated in cooking

Question 10

Consumption of orange juice enhances the absorption of which nutrient?

Accepted Answer

A) Glucose 
B) Iron 
C) Zinc 
D) Fluoride 
A) Glucose 
B) Iron 
C) Zinc 
D) Fluoride

Question 11

Which physiologic process requires vitamin B12?

Accepted Answer

A) Division of red blood cells 
B) Synthesis of proteins 
C) Activation of niacin 
D) Maintenance of myelin and normal nerve transmission 
A) Division of red blood cells 
B) Synthesis of proteins 
C) Activation of niacin 
D) Maintenance of myelin and normal nerve transmission

Question 12

For which group is taking vitamin B12 supplements the LEAST beneficial?

Accepted Answer

A) People eating diets high in animal products 
B) Older adults with significantly reduced stomach acid 
C) People who do not consume animal products 
D) Breast- fed infants whose mothers are vegans 
A) People eating diets high in animal products 
B) Older adults with significantly reduced stomach acid 
C) People who do not consume animal products 
D) Breast- fed infants whose mothers are vegans

Question 13

Pantothenic acid forms part of which molecule?

Accepted Answer

A) Coenzyme A 
B) Flavinadenine dinucleotide 
C) Pyridoxal phosphate 
D) Adenosine triphosphate 
A) Coenzyme A 
B) Flavinadenine dinucleotide 
C) Pyridoxal phosphate 
D) Adenosine triphosphate

Question 14

Pantothenic acid is abundant in:

Accepted Answer

A) raw spinach. 
B) sunflower seeds. 
C) apples. 
D) All of the above. 
A) raw spinach. 
B) sunflower seeds. 
C) apples. 
D) All of the above.

Question 15

Riboflavin forms active coenzymes that do all the following except:

Accepted Answer

A) assist with energy production from carbohydrates,proteins and fats. 
B) function as electron carriers. 
C) participate in the citric acid cycle. 
D) relay signals between nerve cells. 
A) assist with energy production from carbohydrates,proteins and fats. 
B) function as electron carriers. 
C) participate in the citric acid cycle. 
D) relay signals between nerve cells.

Question 16

Which is the FALSE statement regarding biotin?

Accepted Answer

A) Biotin functions in the metabolism of some amino acids. 
B) An RDA for biotin has not been determined. 
C) Biotin is produced by enzymes in epithelial cells that line the small intestine. 
D) People on tube feedings may become deficient. 
A) Biotin functions in the metabolism of some amino acids. 
B) An RDA for biotin has not been determined. 
C) Biotin is produced by enzymes in epithelial cells that line the small intestine. 
D) People on tube feedings may become deficient.

Question 17

Which is a good dietary source of thiamin?

Accepted Answer

A) Sunflower seeds 
B) Pork 
C) Whole grains 
D) All of the above 
A) Sunflower seeds 
B) Pork 
C) Whole grains 
D) All of the above

Question 18

Which term describes how well a vitamin is absorbed and used by the body?

Accepted Answer

A) Adsorption 
B) Assimilation 
C) Bioavailability 
D) Functionality 
A) Adsorption 
B) Assimilation 
C) Bioavailability 
D) Functionality

Question 19

Which of the following statements about vitamin B12 deficiency is true?

Accepted Answer

A) Connective tissue abnormalities are common. 
B) Symptoms can appear quite rapidly. 
C) Myelin degeneration can cause neurological symptoms. 
D) All of the above are true. 
A) Connective tissue abnormalities are common. 
B) Symptoms can appear quite rapidly. 
C) Myelin degeneration can cause neurological symptoms. 
D) All of the above are true.

Question 20

Which disease is caused by niacin deficiency?

Accepted Answer

A) Beriberi 
B) Scurvy 
C) Pellagra 
D) None of the above 
A) Beriberi 
B) Scurvy 
C) Pellagra 
D) None of the above

Exam 8: The Water-Soluble Vitamins

Which statement about niacin is true?

Which statement concerning vitamins is incorrect?

Another name for vitamin B6 is:

Many B vitamins function as ______,which bind to enzymes to promote their activity.

A primary function of thiamin is to:

Folate deficiency symptoms are less of a problem recently because:

The symptom(s)of thiamin deficiency best explained by its role in glucose metabolism are:

Which is the best source of vitamin C?

Which of the following does NOT affect thiamin availability in food?

Consumption of orange juice enhances the absorption of which nutrient?

Which physiologic process requires vitamin B12?

For which group is taking vitamin B12 supplements the LEAST beneficial?

Pantothenic acid forms part of which molecule?

Pantothenic acid is abundant in:

Riboflavin forms active coenzymes that do all the following except:

Which is the FALSE statement regarding biotin?

Which is a good dietary source of thiamin?

Which term describes how well a vitamin is absorbed and used by the body?

Which of the following statements about vitamin B12 deficiency is true?

Which disease is caused by niacin deficiency?

Nutrition: Food for Health

Digestion, Absorption, and Metabolism

Carbohydrates: Sugars, Starches, and Fibre

Lipids

Proteins and Amino Acids

Energy Balance and Weight Management

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 On Alcohol

Focus on Biotechnology

Focus On Eating Disorders

Focus On Phytochemicals

Focus on Supplements

Filters

Another name for vitamin B₆ is:

Which physiologic process requires vitamin B₁₂?

For which group is taking vitamin B₁₂ supplements the LEAST beneficial?

Which of the following statements about vitamin B₁₂ deficiency is true?