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Micelles allow non-soluble lipid products to mix with chyme and travel through the small intestines.
OVERLY SIMPLIFIED EXPLANATION OF HOW LIPIDS GET INTO THE BLOODSTREAM
Lipids are hydrophobic, meaning they can't dissolve in water. Blood is watery, and so is chyme (semi-digested food). If you put raw lipids into those solutions, they'll separate like oil and water in a bottle of Italian dressing and cause all kinds of problems. Instead, you have to package them up with some hydrophilic stuff, so that they'll "flow" along with the rest of the blood/chyme/lymph/whatever, and reach their destination.
The package that allows lipids to mix into chyme is called a MICELLE. The package that allows lipids to mix into the bloodstream is called a CHYLOMICRON.
Micelles are made up of lipid components (cholesterol, fatty acids, etc. -- the stuff you get after the fat is emulsified by bile and broken down by lipases) and bile salts. Micelles are formed in the duodenum and travel to the jejunum, where they are taken up by epithelial cells in the intestinal villi and disassembled.
The lipid bits are then mixed with proteins to form a chylomicron. This allows the lipid to be carried by the bloodstream. HOWEVER! Chylomicrons are huge -- way too big to enter the bloodstream through a capillary. So they have to take the scenic route through the lymphatic system. Special lymph vessels called LACTEALS inside the villi take up chylomicrons and circulate them through the lymphatics, where they eventually reach the bloodstream via the left subclavian vein.
What else can I help you with?
Who is Emily osment daating?
micelle musso
What hydrophobic molecules are surrounded by bile?
Micelle
Structure assisting absorption of long-chain fats?
Micelle
What vitamin travels in a micelle with bile and fatty acids?
Vitamin A
Why spingomyelin can't form micelle structure but palmitic acid can?
Well, not having these structures before me, I still can say that one of these types has both a hydrophyllic end and a hydrophobic end so that it naturally forms a micelle.
What is an aggregation number?
An aggregation number is the number of molecules which are associated together to form a micelle.
What rhymes with giselle?
barbicel carousel carrousel lenticel micell micelle pedicel nacelle solar cell
What is the name of the structure formed when a soap coats an oily particle to make it water soluble?
The structure is called a micelle. It forms when soap molecules surround oily particles, with the hydrophobic tails of the soap facing inward and the hydrophilic heads facing outward, allowing the oily particle to be dispersed in water.
Can micelle formation take place with ethanol?
No, micelle formation can not take place in ethanol.It was found that methanol and ethanol destabilize the formation of both micelles and the protein detergent complex, while n-propanol and the butanol isomers stabilize both systems. Isopropanol has no effect.
What is a bicelle?
A bicelle is a self-assembled aggregate of phospholipid in water, which combines flat bilayer-like and curved micelle-like features.
How a micelle allows grease or oil to dissolve in water?
Micelles are formed by surfactant molecules in water. The hydrophobic tails of surfactant molecules attract grease or oil molecules, while the hydrophilic heads interact with water. This structure encapsulates the grease/oil molecules within the micelle, allowing them to be suspended in water and washed away.
What is the role of micelles?
A micelle is a charged aggregate consisting of molecules that are of colloidal size which are put together to form a solution. Examples of a micelle can be seen in soaps, suspensions, and detergents.
