Question 1

Riboflavin coenzymes function in a variety of metabolic pathways, such as __________.

Accepted Answer

A)   beta-oxidation of fatty acids
B)   the citric acid cycle
C)   the electron transport chain
D)  All of these choices are accurate.

Question 2

The cells most sensitive to a deficiency of dietary folate are cells that ________.

Accepted Answer

A)  have a short life span and rapid turnover rate
B)  have to last a lifetime
C)  function in the immune system
D)  are classified as phagocytes

Question 3

Which group of individuals has the highest requirement for folate?

Accepted Answer

A)  infants
B)  adolescent males
C)  pregnant women
D)  the elderly

Question 4

The coenzyme form of riboflavin is ________.

Accepted Answer

A)  TPP
B)  ATP
C)  FAD
D)  NAD

Question 5

A characteristic symptom of niacin deficiency is ________.

Accepted Answer

A)  cracks at the corners of the mouth
B)  a purple-red tongue
C)  severe edema
D)  inflammation of the skin after exposure to the sun

Question 6

The nutrient sometimes prescribed by physicians to increase HDL-cholesterol and lower triglyceride levels is ________.

Accepted Answer

A)  thiamin
B)  folic acid
C)  niacin
D)  None of these choices are accurate

Question 7

Although not classified as vitamins, ingestion of the substances taurine and carnitine is required for good health.

Accepted Answer

A) True 
 B)False

Question 8

The B-vitamin most easily destroyed by exposure to light is ________.

Accepted Answer

A)  biotin
B)  niacin
C)  riboflavin
D)  thiamin

Question 9

List 2 food sources for manganese.

Accepted Answer

Two food sources that are rich in mangan...

Question 10

Describe why good folate status is especially important for young women.

Accepted Answer

Good folate status is especially importa...

Question 11

About 50% to 90% of folate in foods can be destroyed by ________.

Accepted Answer

A)  food processing and preparation
B)  ultraviolet light
C)  oxidation
D)  All of these choices are accurate

Question 12

Thiamin pyrophosphate (TPP) , the coenzyme form of thiamin, is __________.

Accepted Answer

A)  essential for the various oxidation-reduction reactions of the electron transport system
B)  essential for the addition of two carbon fragments to fatty acids
C)  essential for the oxidative decarboxylation of pyruvate
D)  not really needed because our contemporary diets are low in carbohydrate

Question 13

The riboflavin coenzymes have _______ functions in cellular metabolism.

Accepted Answer

A)  antioxidant
B)  chelating
C)  oxidation and reduction
D)  single carbon group transfer

Question 14

Pernicious anemia is treated most often by ________.

Accepted Answer

A)  a diet high in milk and dairy products
B)  regular intramuscular injection of vitamin B-12
C)  oral supplementation of iron
D)  eating liver three times a week

Question 15

In the United States, salt can be purchased either with or without added iodide.

Accepted Answer

A) True 
 B)False

Question 16

Which of the foods listed below has the lowest niacin bioavailability?

Accepted Answer

A)  wheat
B)  corn
C)  almonds
D)  spinach

Question 17

A diet that provides 75 g protein per day can contribute __________ mg niacin from tryptophan.

Accepted Answer

A)  25
B)  7.5
C)  12.5
D)  750 mg tryptophan / 60 mg tryptophan/mg niacin = 12.5 mg niacin

Question 18

In the average U.S.diet, 1/4 of the riboflavin comes from one food group, the ________.

Accepted Answer

A)  fruit group
B)  vegetable group
C)  milk group
D)  grains group
E)  meat & beans group

Question 19

Niacin is necessary in the diet to prevent the disease called ________.

Accepted Answer

A)  pernicious anemia
B)  beriberi
C)  scurvy
D)  pellagra

Question 20

A strict vegan diet may lack ________.

Accepted Answer

A)  vitamin B-12
B)  vitamin C
C)  vitamin A
D)  niacin

Exam 13: Micronutrients in Energy and Amino Acid Metabolism

The coenzyme form of riboflavin is ________.

Correct AnswerverifiedShow Answer

The B-vitamin most easily destroyed by exposure to light is ________.

Correct AnswerverifiedShow Answer

Riboflavin coenzymes function in a variety of metabolic pathways, such as __________.

Correct AnswerverifiedShow Answer

In the average U.S.diet, 1/4 of the riboflavin comes from one food group, the ________.

Correct AnswerverifiedShow Answer

Although not classified as vitamins, ingestion of the substances taurine and carnitine is required for good health.

Correct AnswerverifiedShow Answer

Which of the foods listed below has the lowest niacin bioavailability?

Correct AnswerverifiedShow Answer

Describe why good folate status is especially important for young women.

Correct AnswerAnswered by ExamLex AIGood folate status is especially importa...View AnswerShow Answer

The cells most sensitive to a deficiency of dietary folate are cells that ________.

Correct AnswerverifiedShow Answer

Thiamin pyrophosphate (TPP) , the coenzyme form of thiamin, is __________.

Correct AnswerverifiedShow Answer

Which group of individuals has the highest requirement for folate?

Correct AnswerverifiedShow Answer

Pernicious anemia is treated most often by ________.

Correct AnswerverifiedShow Answer

In the United States, salt can be purchased either with or without added iodide.

Correct AnswerverifiedShow Answer

The nutrient sometimes prescribed by physicians to increase HDL-cholesterol and lower triglyceride levels is ________.

Correct AnswerverifiedShow Answer

The riboflavin coenzymes have _______ functions in cellular metabolism.

Correct AnswerverifiedShow Answer

A characteristic symptom of niacin deficiency is ________.

Correct AnswerverifiedShow Answer

Niacin is necessary in the diet to prevent the disease called ________.

Correct AnswerverifiedShow Answer

A diet that provides 75 g protein per day can contribute __________ mg niacin from tryptophan.

Correct AnswerverifiedShow Answer

About 50% to 90% of folate in foods can be destroyed by ________.

Correct AnswerverifiedShow Answer

A strict vegan diet may lack ________.

Correct AnswerverifiedShow Answer

List 2 food sources for manganese.

Correct AnswerAnswered by ExamLex AITwo food sources that are rich in mangan...View AnswerShow Answer

Correct Answer
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Two food sources that are rich in mangan...
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