UTSD Nutrition Final

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anamos
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176336
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UTSD Nutrition Final
Updated:
2012-10-08 19:20:27
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UTSD Nutrition
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Nutrition, Bahl
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  1. Define Vitamins
    Vitamins are organic, essential nutrients required in minute amounts to perform specific functions that promote growth, reproduction, or the maintenance of health and life.
  2. What is the latin breakdown of the word Vitamine?
    Vital (life) + Amine (contains nitrogen)
  3. Are B-complex vitamins Water soluble or fat-soluble vitamins?
    they are Water-Soluble Vitamins
  4. Is Vitamin D a water-soluble or fat-soluble vitamin?
    Fat-Soluble
  5. Is Vitamin C a water-soluble or fat-soluble vitamin?
    Vitamin C is a Water-soluble vitamin
  6. Is Vitamin K a water-soluble or fat-soluble vitamin?
    fat-soluble
  7. Is Vitamin E a water-soluble or fat-soluble vitamin?
    Fat-soluble
  8. what is a nother name for Thiamin?  (i.e. what type of vitamin?)  Is Thiamin a water-soluble or fat-soluble vitamin?
    • it is a B-complex vitamin.
    • a.k.a. Vitamin B1
    • Water-soluble.
  9. what is a nother name for Riboflavin?  (i.e. what type of vitamin?)  Is it a water-soluble or fat-soluble vitamin?
    Riboflavin is a B-complex vitamin.  it is aka B2, and it is a water-soluble vitamin.
  10. What is a nother name for Niacin?  (i.e. what type of vitamin?)  Is it a water-soluble or fat-soluble vitamin?
    • B3
    • it is a b-complex vitamin, and is water-soluble.
  11. What is a nother name for Vitamin B6?  (i.e. what type of vitamin?)  Is it a water-soluble or fat-soluble vitamin?
    • B6 (aka pyridoxine) is a b-complex vitamin.
    • it is a water-soluble vitamin.
  12. What is a nother name for Folate?  (i.e. what type of vitamin?)  Is it a water-soluble or fat-soluble vitamin?
    aka Folacin or folic acid, is b-complex vitamin.  it is a water soluble vitamin.
  13. what type of vitamin is Biotin?  Is it a water-soluble or fat-soluble vitamin?
    Biotin is a b-complex vitamin.  It is water-soluble vitamin.
  14. What is a nother name for Pantothenic acid?  (i.e. what type of vitamin?)  Is it a water-soluble or fat-soluble vitamin?
    aka pantothenate, it is a b-complex vitamin and is a water soluble vitamin.
  15. How are water-soluble vitamins:
    absorbed?
    transported?
    Stored?
    Excreted?
    • Water-soluble (B-vitamins and Vitamin C) are
    • absorbed directly into the blood.
    • transported: they travel freely in blood
    • Stored: freely circulate in water-filled parts of the body
    • Excretion:  Kidneys detect and remove excess in urine
  16. is it possible to reach toxic levels when consuming Vitamins C and B from supplements?

    what are the typical intake requirements?
    • yes possible to reach toxic levels.
    • need frequent (1-3) doses daily.
  17. How are fat-soluble vitamins:
    absorbed?
    transported?
    Stored?
    Excreted?
    • absorbed:  first into lymph, then the blood
    • Transport: many require carrier proteins
    • Storage: Trapped in cells associated with fat
    • Excreted: less readily secreted, tends to remain in fat storage sites.
  18. is it possible to reach toxic levels when consuming fat-soluble vitamins from supplements?

    what are the typical intake requirements?
    Yes you are likely to reach toxic levels from consuming too many supplements.

    Required in periodic doses (1 per week or month)
  19. Define coenzyme:

    which vitamin commonly fulfils this role?
    A coenzyme is an organic, dialyzable, thermostable molecule that functions with an enzyme to facilitate a biochemical reaction.

    B-complex vitamins are coenzymes.
  20. what is the primary role of Thiamine?
    Thiamine primarily acts as a coenzyme.
  21. what main reaction does Thamin assist with in the body?
    it starts the reaction converting pyruvate to acetyl CoA in the citric acid cycle.
  22. Which vitamin has a function in regulation of TTP? (the name gives it away)
    Thamin has a function in regulation of the Thiamin triphosphate action regulating nerve impulse transmission.
  23. what is the name for Thiamin deficiency disease?
    main symptoms?
    • Beri-Beri - "I cannot x2" - can't get up and walk
    • symptoms:  loss of appetite, weight loss, fatigue
  24. name three types of Beri-Beri:
    • Dry beri-beri: alcoholics
    • Wet Beri-Beri: includes edema
    • Infantile Beri-Beri (cyanosis "blue baby" cardiac failure)
  25. What is the primary function of Riboflavin (B2)?

    any other functions?
    it is a precursor of coenzymes FMN & FAD that participate in oxidation-reduction reactions.

    Other functions: participation in drug metabolism, lipid metabolism, powerful antioxidant

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