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48 Cards in this Set
- Front
- Back
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Vitamins acts as....
a. a catalyst b. a coenzyme c. all of the aboce d. none of the above |
c. all of the above
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True or False
Dean is Gay |
True - he lives with another man.
Hahaha gotcha! |
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True or False
Eating fats, carbohydrates, and proteins without enough vitamins means the energy from these nutrients cannot be utilized. |
True
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True or False
Vitamins can provide an adequate energy source when lacking fats, carbohydrates, proteins, and even minerals. |
False - false, vitamins DO NOT PROVIDE ANY ENERGY
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What vitamins are required for calcified structures?
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A, D, E, K (fat soluble)
and Vitamin C (water soluble) |
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True or False
Vitamins which the body produce are called nonessential vitamins |
False, the body cannot produce vitamins and must be supplemented in the diet.
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A vitamin deficiency resulting from an unhealthy body is called a _____ deficiency whereas a vitamin deficiency resulting from a decreaseed intake is called a _____ deficiency.
a. primary, secondary b. secondary, primary |
a. secondary, primary
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Fat soluble vitamins require ___ for absorption.
a. transport proteins b. bile c. pepsin d. lignin |
b. bile
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Which can be stored in the body longer: water soluble vitamins or fat soluble vitamins?
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fat soluble
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Which of the following vitamin a sources is from an animal source?
a. beta-carotene b. chlorophyll c. retinol d. cholesterol |
c. retinol
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______ is the most biologically actice form of vitamin A.
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retinoic acid
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Vitamin A is transported via
a. freely in the blood b. in vesicles c. bound to a protein d. none of the above |
c. bound to a protein
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True or False
Vitamin A is filtered by the kidneys? |
False - Vitamin A is too large for the kidney to filter and that is why it is retained.
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Retinoic acid can store up to _____ supply of vitamin a.
a. 3 months b. 9 months c. 1 year d. 2 years |
c. 1 year
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A deficincy of rhodopsin can lead to _____.
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night blindness
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Retinal + ______ = rhodopsin
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a. Opsin
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The BEST known function of vitamin A is ___.
a. Cancer prevention b. Growth c. Maintenance of oral soft tissues d. Preserves vision |
d. preserves vision
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True or False
Vitamin A is involved with normal teeth spacing and promotes osteoblast function of the alveolar bone. |
True
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Hyper states of vitamin A results in
a. diplopia b. damage to cell membranes c. reddened gingiva d. all of the above |
d. all of the above
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Toxicity resulting from excessive intake of vitamin A results in ______.
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hypercarotenemia
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Vitamin A deficiency is most commonly found in ____.
a. infants b. children under the age of 5 c. adolescents b/t 10 - 15 d. middle age adults. |
b. children under the age of 5
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What is the proper order of this degenerative sequence caused by inadequate vitamin A deficiency?
a. Bitot's spots, night blindness, xerophthalmia b. Night blindness, xerophthalmia, bitots spots c. xeropthalmia, bitots spots, night blindness d. night blindness, bitots spots, night blindness |
b. Night blindness, xerophthalmia, bitots spots
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Severe Vitamin deficiency can result in ____?
a. enamel hyperplasia b. enamel hypoplasia c. ameleogenesis hyperplasia d. ameleogenesis hypoplasia |
a. enamel hyperplasia
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True or False
Vitamin D can be classified more appropriately as a ____. |
hormone - it is unique in that the body can manufacture its own supply when exposed to UV rays.
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What is the active form of vitamin D?
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Calciferol.
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What is the primary role of vitamin D?
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To mineralize bones and teeth and regulate blood calcium and phosphorus levels.
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If you are fair skinned ____ of exposure of sunlight is sufficient for vitamin D intake; for dark skin, ___ is enought time for exposure.
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30 minutes, 3 hours
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Which vitamin is the most toxic of all vitamins?
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Vitamin D
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Which of the following is NOT a result of a vitamin D deficiency?
a. Enamel hyperplasia b. Rickets c. Osteomalacia d. all of the above are results of vitamin D deficiency. |
a. enamel hyperplasia
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Rickets : children
_______ : adults |
osteomalacia
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Vitamin E is aka
a. Calciferol b. Retinol c. Tocopherol d. Menadione |
c. Tocopherol
Calciferol - D Retinol - A Menadione - K Ascorbic Acid - C |
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The most important role of vitamin E is that it serves as ______.
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an antioxidant - protects the integrity of normal cell membranes
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True or False
Vitamin E is relatively non toxic. |
True
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Excessive intake of vitamin E can produce _____.
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hypertension
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Megadoses of vitamin E inhibits ____________.
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the clotting action of vitamin K.
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This deficiency is rarely seen.
a. vitamin C b. vitamin A c. vitamin K d. citamin E |
d. vitamin E
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How many forms of vitamin K are there and what are they?
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1. K-1 occurs in green plants
2. K-2 formed by Escherichia coli bacteria in the large intestine 3. K-3 synthetic compound |
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Vitamin K functions as a catalyst for ______.
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clotting
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True or False
No toxicity symptoms have been documented for oral intake of vitamin K. |
True
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A deficiency of vitamin ____ may occur if a broad spectrum antibiotic is taken and reduced the number of endogenous intestinal bacteria.
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K
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Which group is vunerable to vitamin K deficiencies?
a. newborns b. children c. adults d. teens |
a. newborns because the intestine of a newborn is sterile
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This vitamin is important in collage formation.
a. vitamin A b. vitamin B c. vitamin C d. vitamin E |
c. vitamin C
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Vitamin ___ & ____ functions as an antioxidant
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C & E
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Vitamin _____ enhances iron absorption and utlization.
a. A b. B c. C d. E |
c. C
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Excessive amounts of vitamin C can cause _______ and interfere with _______.
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gastrointestinal distress & vitamin B-12 absorption
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Vitamin C intake above _____ daily can resul in urinary excretion of oxalate and increase the likliehood of urinary stones.
a. 500 mg b. 1000 mg c. 2000 mg d. 4000 mg |
b. 1000 mg
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A vitamin C deficiency can be cause _______.
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scurvy... aaarrrrg! (pirate voice)
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True or False
Steroids, antibiotics, and salicylates can decrease excretion of vitamin C |
False it can increase the excretion of vitamin C.
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