Nutrition FA

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Nutrition FA
2012-07-17 11:17:55
Nutrition FA

Nutrition FA
Show Answers:

  1. What are artifically produced fats called
    trans fats
  2. What is hydrogenation
    changes unsaturated oils into solid fats
  3. Why are trans fats unhealthy
    • cause CAD and DMII
    • decrease HDL, increses LDL
    • disrupts FA function
  4. Why is trans fat hydrogenated
    to meet demand for cheap solid fats
  5. What are sources of trans fat
    • breads
    • cookies
    • cake
    • crackers
    • margarine
    • frozen potatoes
    • frying in resturants
  6. Why do we not want to use lipids as an energy source
    ketones develop, can lead to acidosis
  7. Lipogenisis results in formation of what
    • triglycerides
    • phospolipids
    • cholesterol
    • prostoglandins
  8. What promotes lipid anabolism (lipogenisis)
  9. The breakdown of lipids release what
    • the following FA:
    • GH
    • ACTH
    • TSH
    • corticosteroids
    • epinepherine
    • thyroxine
  10. Where does fat digestion begin
    mouth with lipase
  11. Where is there little fat digestion occuring
  12. What gets released into the small intestine to helo emulsify fat
  13. What breaks down the triglycerides into monoglycerides, FA, and glycerol
    pancreatic lipase
  14. What are micelles
    formed when fat binds with bile, absorbed by microvilli
  15. What happens to monoglycerides& FA in the mucosal cells
    reassembled into triglycerides and incorperated in chylomicrons(lipoproteins)
  16. Where are the lipoproteins taken to
    lymph system, then cardiovascular system
  17. What is the DRI for fat intake
    • 20-30% kcal(40-97g)(400-875 kcal)
    • 10% or less from saturated fats(25-20g)(225-180kcal)
  18. All animal food sources contain
  19. cholesterol is a
  20. What is the role of lipoproteins in our body
    transport lipid-based molecules that are water insouluable through water based plasma
  21. What carries fats & cholesterol to the body cells and is made of the largest proportions of cholesterol
    • LDL
    • VLDL
  22. What carries fat and cholesterol from body cells to the liver for excretion and is largely made of proteins
  23. Total blood readings contain both
    • HDL
    • LDL
  24. What are the desired blood cholesterol levels
    • Total= <200mg/dl
    • LDL= <130 mg/dl
    • HDL= >40mg/dl
  25. Dietary guidelines recomend a daily intake of what for cholesterol
    300mg or less
  26. If LDL cholesterol is elevated what should the cholesterol intake be
    less than 200mg
  27. Content of cholesterol in food has a ------- influence on blood cholesterol
  28. What is the biggest problem for elevated cholesterol
    saturated fat, not cholesterol content
  29. What effects LDL the greatest
    saturated fat