What is the difference between micelles and chylomicrons

This is the form in which digested fats are absorbed into the intestinal cells. The products of fat digestion are used for synthesizing new fats which are released by the intestinal cells into the lymph, in the form of droplets called chylomicrons. This is the form in which the synthesized fats are liberated from the intestinal cells. What is the name of the structures that are absorbed into the Lacteals?

Villi that line the walls of the small intestine absorb nutrients into capillaries of the circulatory system and lacteals of the lymphatic system. Villi contain capillary beds, as well as lymphatic vessels called lacteals.

Fatty acids absorbed from broken-down chyme pass into the lacteals. Jazmin El Mesbahi Supporter. Which of the following carry cholesterol away from the cells and return it to the liver? HDL stands for high-density lipoproteins.

It is sometimes called the "good" cholesterol because it carries cholesterol from other parts of your body back to your liver. Sunita Gillig Supporter. Which of the following is responsible for the storage of extra bile? The liver produces bile, a digestive juice that is required for the breakdown of fats in the duodenum.

The liver also processes the absorbed vitamins and fatty acids and synthesizes many plasma proteins. The gallbladder is a small organ that aids the liver by storing bile and concentrating bile salts. Masha Hochdorffer Beginner. How do chylomicrons differ from micelles with regard to their structural components? Beryl Primavera Beginner. How are fats broken down in the digestive system? Ask A Question. Co-authors: Updated On: 6th June, Another lipid of importance that is absorbed in the small intestine is cholesterol.

Cholesterol homeostatis results from a balance of cholestrol synthesis, absorption of dietary cholesterol, and elimination of cholesterol by excretion in bile. Years ago it was shown that cholesterol, but not plant sterols, is readily absorbed in the intestine. More recently, a specific transport protein NPC1L1 has been identified that ferries cholesterol from the intestinal lumen into the enterocyte. From there, a bulk of the cholesterol is esterified, incorporated into chylomicrons and shuttled into blood by the mechanisms described above.

If you are interested in confirming for yourself at least some of the processes described above, you should perform the following experiment:.

When you examine your plasma it will look distinctly milky due to the presence of billions of light-reflecting chylomicrons the condition is called lipemia. If you want extra credit, continue the blood sampling every 15 minutes until your plasma clears, then plot your results on graph paper.

Alternatively, you can simply examine the image to the right to see what dog serum looks like after several hours of fasting in comparison to lipemic serum collected shortly after a meal of puppy chow. Absorption of Amino Acids and Peptides. Introduction and Index. Updated May Chylomicrons are a type of lipoproteins made only in the endoplasmic reticulum of the intestine absorptive cells or enterocytes. They consist of phospholipids, triglycerides, cholesterol and proteins.

Inside the chylomicron, there are a high amount of triglycerides and a less amount of cholesterol. Outside of the chylomicron, there are phospholipids and apolipoproteins. Triglycerides and cholesterol are insoluble in water. Hence, they are not soluble in plasma. In order to transport dietary lipids, they get packaged as chylomicrons, which are lipoprotein particles.

Once made, chylomicrons transport dietary lipids from intestine to adipose, cardiac muscle and skeletal tissues. Lipoprotein lipases hydrolyze the triglycerides in chylomicrons and release free fatty acids in order to be absorbed by the target tissues. Micelles are aggregates of lipid molecules formed in an aqueous solution while chylomicrons are triglyceride-rich lipoproteins that are made to transport dietary lipids from intestine to adipose, skeletal and cardiac muscle tissue.

So, this is the key difference between micelles and chylomicrons. Also, structurally, micelles are mainly composed of phospholipids while chylomicrons are made from triglycerides, cholesterol, phospholipids and apolipoproteins.