Fats are absorbed by the epithelial cells of villi in the intestinal tract and enter the...

Fats are absorbed by the epithelial cells of villi in the intestinal tract and enter the capillary beds of the circulatory system.

True or false?

Solutions

Expert Solution

False. Fats are not absorbed by the epithelial cells of cilli in the intestinal tract and do not enter the capilllary beds of the circulatory system.

In the small intestine, the middle of each villus is both a capillary bed for absorption of water-soluble nutrients & a "lacteal" = lymphatic channel that takes up fats for transport into the lymphatic system.

While the water soluble compounds (monosaccharides, Amino acids, water-soluble vitamins (B&C), small fatty acids, water) enter the "capillary bed" blood from epithelial cells and then go to the liver ( via the hepatic portal circulation), the fat soluble compounds (fats, cholesterol, fat-soluble vitamins(A,D,E,K)) enter the "lacteal" (small vessels that form the beginning the lymphatic system) and go on to enter the "thoracic duct". The thoracic duct thereafter empties the contents into the left subclavian vein.

The statement is therefore false.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

The cartoon depicts intestinal epithelial cells joined to their neighbors by tight junctions, which allow the...

The cartoon depicts intestinal epithelial cells joined to their neighbors by tight junctions, which allow the cells to maintain biochemically distinct apical and basolateral regions. Which of the following accurately describes “the fence function” of tight junctions in intestinal epithelial cells? Group of answer choices (A) The fence function prevents Na+-driven glucose transporters from diffusing to the basolateral side and passive glucose transporters from diffusing to the apical side of the plasma membrane (B) The fence function prevents mixing of...

The Na –glucose symport system of intestinal epithelial cells couples the \"downhill\" transport of two Na...

The Na –glucose symport system of intestinal epithelial cells couples the \"downhill\" transport of two Na ions into the cell to the \"uphill\" transport of glucose, pumping glucose into the cell against its concentration gradient. If the Na concentration outside the cell ([Na ]out) is 163 mM and that inside the cell ([Na ]in) is 23.0 mM, and the cell potential is -51.0 mV (inside negative), calculate the maximum ratio of [glucose]in to [glucose]out that could theoretically be produced if...

Short answer: The Fc receptor FcRn, expressed in intestinal epithelial cells, binds to the Fc portion...

Short answer: The Fc receptor FcRn, expressed in intestinal epithelial cells, binds to the Fc portion of IgG antibodies. Moreover, FcRn binds to IgG with high affinity at an acidic pH (<6.5) but not at physiological pH (pH 7.4). How is this biochemical feature of FcRn critical for its role in antigen presentations for gut immunity?

The Na –glucose symport system of intestinal epithelial cells couples the \"downhill\" transport of two Na...

The Na –glucose symport system of intestinal epithelial cells couples the \"downhill\" transport of two Na ions into the cell to the \"uphill\" transport of glucose, pumping glucose into the cell against its concentration gradient. If the Na concentration outside the cell ([Na ]out) is 153 mM and that inside the cell ([Na ]in) is 19.0 mM, and the cell potential is -49.0 mV (inside negative), calculate the maximum ratio of [glucose]in to [glucose]out that could theoretically be produced if...

Name the four types of cell junctions found in intestinal epithelial cells. Why don’t plants have...

Name the four types of cell junctions found in intestinal epithelial cells. Why don’t plants have as many types of junctions?

Cholera toxin inhibits the Na+/K+ATPase activity of intestinal epithelial cells. Resulting with decreased uptake of glucose....

Cholera toxin inhibits the Na+/K+ATPase activity of intestinal epithelial cells. Resulting with decreased uptake of glucose. Describe why inhibiting the Na/K+ ATPase pump affects glucose uptake in the intestine.

Why are the skin and intestinal tract the major sites for graft-versus-host disease?

1. Chemicals are more readily absorbed through the skin or GI tract if they are A....

1. Chemicals are more readily absorbed through the skin or GI tract if they are A. polar compounds B. ionic compounds C. lipid soluble D. non-ionic, neutral compounds E. both (C) and (D) 2. Which of the following processes or interactions would interfere with the delivery of the ultimate toxicant to its target site (intracellular molecule) where it produces the toxic effect? A. increased porosity of capillaries B. reabsorption C. specialized membrane transporters D. activation of the toxicant (toxication) E....

1. Explain how digested fats are absorbed and transported in the body including the health effects...

1. Explain how digested fats are absorbed and transported in the body including the health effects of the different types of lipoproteins. Include the following terms in your explanation: lipoproteins, chylomicrons, HDL, LDL. 2. Explain how fat is digested including the 3 enzymes that assist in digestion, the function of bile, and which part(s) of the GI tract fat digestion takes place.

2A4 pages on: describe the general histological organisation if the gastro-intestinal tract. compare and contrast the...

2A4 pages on: describe the general histological organisation if the gastro-intestinal tract. compare and contrast the histological structure of the small and large intestine, making reference to the different functions.

Subjects