Question 1

Thiamin, niacin, and riboflavin work together in important biochemical pathways that ________.

Accepted Answer

A)  synthesize collagen
B)  control the visual process
C)  promote absorption of calcium
D)  release energy from carbohydrate, fat, and protein

Question 2

Biochemical reactions that add CO2 to compounds often require ________.

Accepted Answer

A)  folic acid
B)  thiamin
C)  biotin
D)  vitamin B-12

Question 3

________ are very large immature red blood cells, which are formed as a result of folate deficiency.

Accepted Answer

A)  Erythrocytes
B)  Megaloblasts
C)  Lymphocytes
D)  Platelets

Question 4

In a situation where there is an insufficient intake of dietary iodide, the thyroid-stimulating hormone promotes the enlargement of the thyroid gland.This condition is called ________.

Accepted Answer

A)  Graves' disease
B)  goiter
C)  hyperparathyroidism
D)  Wilson's disease

Question 5

Irreversible nerve damage may be caused by excessive intake of _______ supplements.

Accepted Answer

A)  vitamin B-12
B)  vitamin B-6
C)  tryptophan
D)  vitamin C

Question 6

In addition to its role in amino acid metabolism, vitamin B-6 is also required for ________.

Accepted Answer

A)  fatty acid metabolism
B)  the release of glucose from glycogen
C)  the electron transport chain
D)  glycolysis

Question 7

Bright yellow urine usually is indicative that someone is supplementing with ________.

Accepted Answer

A)  niacin
B)  vitamin A
C)  vitamin K
D)  riboflavin

Question 8

Pyridoxal, pyridoxine, and pyridoxamine are three forms of ________.

Accepted Answer

A)  vitamin B-12
B)  vitamin P
C)  folic acid
D)  vitamin B-6

Question 9

Discuss the roles of thiamin, riboflavin, niacin, and pantothenic acid in energy metabolism.

Accepted Answer

Thiamin, riboflavin, niacin, and pantoth...

Question 10

Pantothenic acid is a part of _________, an important biochemical compound.

Accepted Answer

A)  pyruvate
B)  citric acid
C)  acetyl-CoA
D)  homocysteine

Question 11

Supplemental vitamin B-6, vitamin B-12, and folate can reduce blood levels of homocysteine, but have not been proven to reduce the risk of cardiovascular disease.

Accepted Answer

A) True 
 B)False

Question 12

A high intake of raw egg whites (>12 per day)  can inhibit absorption of ________.

Accepted Answer

A)  folate
B)  vitamin B-12
C)  pantothenic acid
D)  biotin

Question 13

The fact that the amino acid tryptophan can be converted to niacin by the body explains why ________.

Accepted Answer

A)  diets high in protein could prevent or cure pellagra
B)  corn-based diets prevent pellagra
C)  gelatin cures pellagra
D)  alcoholics sometimes develop Wernicke-Korsakoff syndrome

Question 14

Goitrogenic foods that can inhibit iodide metabolism include ________.

Accepted Answer

A)  cabbage, broccoli, and cauliflower
B)  yogurt, buttermilk, and cheese
C)  oranges and grapefruit
D)  beef, poultry, and fish

Question 15

Research shows that supplemental vitamin B-6 may help women who are experiencing ________.

Accepted Answer

A)  nausea associated with pregnancy
B)  pellagra
C)  premenstrual syndrome
D)  depression

Question 16

For vitamin B-12 to be absorbed, it must be attached to ________.

Accepted Answer

A)  an incomplete protein
B)  intrinsic factor
C)  bile
D)  the protein portion of its final coenzyme form

Question 17

Vitamin B-12 is absorbed in the ________.

Accepted Answer

A)  stomach
B)  duodenum
C)  jejunum
D)  ileum

Question 18

Whole grains, nuts, legumes, and tea are the best sources of manganese.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following factors can interfere with the absorption of vitamin B-12?

Accepted Answer

A)  Surgical removal of the stomach
B)  Defective R-protein synthesis
C)  Infections of the ileum or surgical removal of the ileum
D)  All of these choices are accurate

Question 20

Good sources of folate include ________.

Accepted Answer

A)  enriched cereals and grains
B)  leafy green vegetables
C)  oranges
D)  dried beans
E)  All of these choices are accurate

Exam 13: Micronutrients in Energy and Amino Acid Metabolism

Research shows that supplemental vitamin B-6 may help women who are experiencing ________.

Correct AnswerverifiedShow Answer

Biochemical reactions that add CO2 to compounds often require ________.

Correct AnswerverifiedShow Answer

The fact that the amino acid tryptophan can be converted to niacin by the body explains why ________.

Correct AnswerverifiedShow Answer

Goitrogenic foods that can inhibit iodide metabolism include ________.

Correct AnswerverifiedShow Answer

Bright yellow urine usually is indicative that someone is supplementing with ________.

Correct AnswerverifiedShow Answer

________ are very large immature red blood cells, which are formed as a result of folate deficiency.

Correct AnswerverifiedShow Answer

Whole grains, nuts, legumes, and tea are the best sources of manganese.

Correct AnswerverifiedShow Answer

A high intake of raw egg whites (>12 per day) can inhibit absorption of ________.

Correct AnswerverifiedShow Answer

Good sources of folate include ________.

Correct AnswerverifiedShow Answer

For vitamin B-12 to be absorbed, it must be attached to ________.

Correct AnswerverifiedShow Answer

Irreversible nerve damage may be caused by excessive intake of _______ supplements.

Correct AnswerverifiedShow Answer

Supplemental vitamin B-6, vitamin B-12, and folate can reduce blood levels of homocysteine, but have not been proven to reduce the risk of cardiovascular disease.

Correct AnswerverifiedShow Answer

Discuss the roles of thiamin, riboflavin, niacin, and pantothenic acid in energy metabolism.

Correct AnswerAnswered by ExamLex AIThiamin, riboflavin, niacin, and pantoth...View AnswerShow Answer

In addition to its role in amino acid metabolism, vitamin B-6 is also required for ________.

Correct AnswerverifiedShow Answer

Pyridoxal, pyridoxine, and pyridoxamine are three forms of ________.

Correct AnswerverifiedShow Answer

Pantothenic acid is a part of _________, an important biochemical compound.

Correct AnswerverifiedShow Answer

Thiamin, niacin, and riboflavin work together in important biochemical pathways that ________.

Correct AnswerverifiedShow Answer

In a situation where there is an insufficient intake of dietary iodide, the thyroid-stimulating hormone promotes the enlargement of the thyroid gland.This condition is called ________.

Correct AnswerverifiedShow Answer

Which of the following factors can interfere with the absorption of vitamin B-12?

Correct AnswerverifiedShow Answer

Vitamin B-12 is absorbed in the ________.

Correct AnswerverifiedShow Answer

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Biochemical reactions that add CO₂ to compounds often require ________.

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Thiamin, riboflavin, niacin, and pantoth...
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