Term
Research has shown that the risk for neural tube defects is lowered by taking supplements of
A. niacin.
B. folate.
C. vitamin C.
D. vitamin B12. |
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Definition
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Term
Riboflavin is most easily destroyed when exposed to
A. heat.
B. acid.
C. alkali.
D. ultraviolet light. |
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Definition
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Term
Which of the following describes the basic function of a coenzyme?
A. Attaches to RNA to assist in the synthesis of an enzyme
B. Attaches to cell membranes to assist in uptake of an enzyme
C. Attaches to an enzyme and allows a chemical reaction to take place
D. Attaches to an enzyme, which allows for transport of the enzyme through the circulation |
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Definition
| A. Attaches to RNA to assist in the synthesis of an enzyme |
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Term
The appearance of vitamin B12 deficiency symptoms may be delayed due to high intake of supplements of
A. folate.
B. niacin.
C. vitamin C.
D. vitamin B6. |
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Definition
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Term
General characteristics of the water-soluble vitamins include all of the following except
A. they must be consumed daily.
B. toxic levels in the body are rarely found.
C. they are absorbed directly into the blood.
D. excesses are eliminated from the kidneys. |
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Definition
| A. they must be consumed daily. |
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Term
Of the following foods, which would be the only source of vitamin B12?
A. Pecans
B. Hot dog
C. Cauliflower
D. Whole-grain bread |
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Definition
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Term
All of the following are required for efficient dietary absorption of vitamin B12 except
A. pepsin.
B. intrinsic factor.
C. hydrochloric acid.
D. mucosal cobalaminase. |
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Definition
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Term
Of the following, which is the richest food source of thiamin?
A. Lettuce
B. Soy milk
C. Cow milk
D. Refined rice |
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Definition
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Term
Tryptophan can be used in the body to synthesize
A. FAD.
B. biotin.
C. niacin.
D. inositol. |
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Definition
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Term
Cooking a food in liberal amounts of water is least likely to affect the vitamin content of
A. folate.
B. thiamin.
C. vitamin A.
D. riboflavin. |
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Definition
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Term
Forms of vitamin B6 include all of the following except
A. pyridoxal.
B. pyridoxine.
C. pyrimidine.
D. pyridoxamine. |
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Definition
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Term
Irreversible nerve damage has been reported in people taking large doses of
A. vitamin B1.
B. vitamin B2.
C. vitamin B6.
D. vitamin B12 |
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Definition
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Term
What is the primary excretory route for the water-soluble vitamins?
A. Bile
B. Kidney
C. Intestine
D. Perspiration |
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Definition
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Term
Which of the following foods is highest in folate?
A. Meats
B. Starches
C. Dairy products
D. Green, leafy vegetables |
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Definition
| D. Green, leafy vegetables |
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Term
The vitamin deficiency disease pellagra means
A. "rough skin."
B. "paralyzed limbs."
C. "demented behavior."
D. "flattened erythrocytes." |
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Definition
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Term
A general niacin deficiency is known to be manifested in abnormalities of all of the following organs/systems except
A. skin.
B. skeletal.
C. nervous system.
D. gastrointestinal tract. |
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Definition
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Term
Of the following commonly eaten foods, which makes the greatest contribution to riboflavin intake?
A. Milk
B. Potatoes
C. Orange juice
D. Peanut butter |
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Definition
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Term
Which of the following explains why B vitamin deficiencies lead to lack of energy?
A. B vitamins are a source of kilocalories
B. Absorption of carbohydrates and fats is decreased
C. Oxygen for energy metabolism cannot be transported to the cells
D. Coenzymes needed for energy metabolism are produced in insufficient amounts |
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Definition
| D. Coenzymes needed for energy metabolism are produced in insufficient amounts |
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Term
Beriberi results from a deficiency of
A. niacin.
B. thiamin.
C. vitamin C.
D. vitamin B12. |
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Definition
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Term
A similar type of anemia is produced when there is a deficiency of either
A. riboflavin or niacin.
B. vitamin B12 or folate.
C. thiamin or riboflavin.
D. vitamin B6 or vitamin B12. |
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Definition
| B. vitamin B12 or folate. |
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Term
Which of the following activities is shared by vitamin B12 and folate?
A. Both are required for nucleic acid synthesis
B. Both require intrinsic factors for their release from food proteins
C. Both are found in significant amounts in green leafy vegetables
D. Both are considered problem nutrients for strict vegetarians |
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Definition
| A. Both are required for nucleic acid synthesis |
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Term
Among the following, which would be the best source of Niacin Equivalents?
A. Milk
B. Broccoli
C. Chicken
D. Strawberries |
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Definition
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