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Cards In This Set
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What is this molecule?
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Vitamin A
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Bound to fat-soluble vitamins in blood
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Chylomicrons
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Abnormalities in lipid absorption which can also result in fat-soluble vitamin deficiency
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Steatorrhea
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Considered to be a vitamin and prohormone
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Vitamin D
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Where large quantities of fat-soluble vitamins can be stored
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Liver and adipose tissue
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Possible toxicities in which 2 vitamins? Which 2 are non-toxic?
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Toxicity - A and D
Non-toxic - E and K
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Involved in photopic (day) and scotopic (night) vision
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Vitamin A
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Deficiency causes rickets - cured with cod liver oil
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Vit D
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Vitamin D precurser in A) plants, milk, yeast and B) animals
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Plants, milk, yeast = ergosterol
Animals = 7-dehydrocholesterol
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Formed by non-enzymatic process catalyzed by UV light
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Vitamin D
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Involved in bone remodeling
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Vitamin A
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Is oxidation of trans-retinol to retinoic acid reversible?
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No
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Involved in maintenance and differentiation of epithelial tissues
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Vitamin A
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A) Forms of Vitamin A involved in vision
B) Form of Vit A not stored in body
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A) Retinol and Retinal
B) Retinoic Acid
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Involved in spermatogenesis
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Vitamin A and Selenium
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