fat soluble vitamins II

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fat soluble vitamins II
2012-02-10 01:32:40
Fat soluble Vitamins

Reviewing the questions I got wrong 'til I get em right!
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  1. Bet a Carotine is a provitamin A carotenoid that the body can metabolize to form how many moleciles of retinal?
  2. Retinoic acid is needed for immature epithelial cells to become mature, this process is called:
    cell differentiation
  3. In addition to it's function in maintaing protective barriers (skin andd intestinal lining and respiratory tract lining) another way in which Vitamin A functions in the immune system is through its requirment for the production of.....
  4. Human epidemilogical studies suggest that the consumption of nonprovitamin A carotenoid___________ is related to a lower risk of prostate cancer
  5. No DRI's have been established for the carotenoids because
    there is insufficient evidence to support their essentiality beyond the role as suppliers of vitamin A
  6. Some scientists consider vitamin D to be conditionally essential because..
    Significan amounts can be synthesized in the body
  7. The form of vitamin D that comes from plant sources is:
  8. The precursor for the synthesis of cholecalciferol is:
  9. Regardless of weather it is consumed in the diet or produced in the skin, cholecalciferol must be further metabolized before the body can use it. This is a two step process, the first of which occurs in the...
  10. Vitamin D plays a critical role in cell differentiation by up regulating...
    the genes responsible for specific proteins
  11. People who are recieveing coumadin should consume a diet that:
    is relatively consistant in vitamin K content
  12. Preformed Vitamin A is typically found in what type of products?
  13. Parathyroid hormone stimulates the conversion of 25-(OH)D3 to 1,25(OH)2D3 when...
    calcium levels are low
  14. What is a major function of Vitamin E?
    Protection of cell membranes from free radical damage
  15. Rickets is caused by what deficiency?
    Vitamin D
  16. Which Vitamin has no UL?
    Vitamin K
  17. Fat soluble vitamins are absorbed in the small intestine in the presence of _______ and ______
    Bile and lipids
  18. What are the functions of Vitamin A and the carotenoids?
    Regulating growth, reproduction, vision, immune function, gene expression, bone formation
  19. Vitamin A defiency can result in:
  20. High vitamin A intakes can result in fetal____
    malformations/ deformations
  21. Vitamin D is found in _______and to a lesser extent in _______
    Fatty fish, plant foods
  22. The body can produce vitamin D from a______ _______
    cholesterol metabolite
  23. The active form of Vitamin D (calcitrol) is also called:
    1,25 dihydroxyvitamin D
  24. Vitamin E deficiency is rare but results in ______ and ______anemia
    neuromuscular problems and hemolytic anemia
  25. Vitamin E toxicity is rare but results in:
  26. Vitamin K refers to what 3 related compounds?
    phylloquinone, menaquinone, menadione
  27. Good sources of Vitamin K are: _____ ______ vegetables.
    dark green
  28. Vitamin K is involved in calcium requiring reactions needed for ______ _______ and proper bone _______.
    blood clotting, Mineralization