Nutition

posted by .

"The body absorbs lipids mostly within the small intestine. The gallbladder secrets a chemical called bile to aid in the breakdown of this fat. From there the fat is broken down farther by the enzymes the pancreas makes. The mixture of "fatty acids, partially digested triglycerides and bile form micelles" (Grosvenor & Smolin, 2006, p.128) this stimulates the absorption process. After the absorption the triglycerides are reassembled and the majority of the bile is returned to the liver ready to repeat the process."

Triglycerides cannot pass through cell membranes freely. Special enzymes on the walls of blood vessels called lipoprotein lipases must break down triglycerides into free fatty acids and glycerol. Lipoproteins can be classified as High-density lipoproteins (HDL's) and Low-density lipoproteins (LDL's). LDL's are associated with artery and heart disease and are often referred to as "bad cholesterol". What determines the classification into these categories?

  • Nutition -

    IT is density. However, the classifications are important, because the majority of the HDL is returned to the liver, and the LDL is not.

    See Blood Transport in this article
    http://en.wikipedia.org/wiki/Cholesterol

  • Nutition -

    the health

  • Nutition -

    1) type of fatty acid.
    2) ratio of lipid:protein
    3) amount of TG and cholesterol.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science- small intestine

    how does mechanical digestion occur in the small intestine?
  2. Biology

    I'm stuck on these--- 9. Most of the end products of digestion are absorbed into the circulatory system from which organ?
  3. physology

    Match the following organs with one of its functions. 1. Oral cavity ______ a. stores bile 2. Pharynx ______ b. begins mechanical breakdown of food 3. Esophagus ______ c. responsible for 90% of all nutrient absorption 4. Stomach ______ …
  4. H.E.L.P

    1. Which of the following describes the correct sequence of the movement of food during digestion?
  5. Science

    1. Which of the following describes the correct sequence of the movement of food during digestion?
  6. Science

    1) Which of the following describes the correct sequence of the movement of food during digestion?
  7. Health

    the chemical process by which your body breaks down the nutrients in foods to release energy for the cells in your body describes. A.calories*** B.cholesterol C.metabolism D.nutrition ----is a type of complex carbohydrate that does …
  8. Health ( ANSWER ASAP)

    1)Which nutrient can be found in both animals and plants and provides growth and repair of your bodys tissues A) Fiber B) Protein My theory is Protein C) Trans Fat D) Unsaturated fat 2)__ Is a type of complex carbohydrate that does …
  9. Health i thin ! PLZ HELP ASAP!!!!

    Which of the following is not a type of fat?

More Similar Questions