How are chylomicrons degraded?
Degradation of chylomicron remnants by macrophages occurs via phagocytosis.
Where are chylomicrons degraded?
In the rat, chylomicron remnants and very low density lipoprotein (VLDL) remnants are taken up into the liver by high affinity processes and appear to undergo degradation by lysosomes.
What is the function of chylomicrons?
Chylomicrons are produced for the purpose of transporting dietary triglycerides and cholesterol absorbed by intestinal epithelia. Chylomicron assembly originates in the intestinal mucosa. Excretion into the plasma is facilitated through the lymphatic system.
What does chylomicron mean?
Definition of chylomicron : a lipoprotein rich in triglyceride and common in the blood during fat digestion and assimilation.
What is chylomicron remnant?
The enzyme lipoprotein lipase, with apolipoprotein (apo)C-II as a co-factor, hydrolyzes chylomicron triglyceride allowing the delivery of free fatty acids to muscle and adipose tissue. As a result, a new particle called a chylomicron remnant is formed.
What is chylomicron quizlet?
Chylomicrons are (the largest) lipoproteins comprised of triglycerides from diet, cholesterol, and phospholipids. They are found in the blood and lymphatic fluid where they function to transport dietary lipids and cholesterol to the peripheral tissues.
Which of compounds present in chylomicrons is degraded by lipoprotein lipase?
In the circulation, the triglycerides carried in chylomicrons are metabolized in muscle and adipose tissue by lipoprotein lipase releasing free fatty acids, which are subsequently metabolized by muscle and adipose tissue, and chylomicron remnants are formed.
What is the fate of chylomicrons?
Catabolism of chylomicrons is associated with a rapid transfer of phospholipid, apoA-I, and possibly apoA-IV into HDL. Chylomicron phospholipid appears to give rise to vesicles which are probably incorporated into preexisting HDL. Chylomicron surface components may be an important source of plasma HDL.
How is chylomicrons absorbed?
A majority of the lipid absorbed from the newborn’s lipid-rich diet enters the blood circulation through the lymphatic system, which transports triglyceride-loaded particles known as chylomicrons from the villi of the small intestine to the venous circulation near the heart.
What is chylomicron in zoology?
Chylomicron: A small fat globule composed of protein and lipid (fat). Chylomicrons are found in the blood and lymphatic fluid where they serve to transport fat from its port of entry in the intestine to the liver and to adipose (fat) tissue.
What do apolipoproteins do?
Apolipoproteins are proteins that bind lipids (oil-soluble substances such as fat and cholesterol) to form lipoproteins. They transport lipids (and fat soluble vitamins) in blood, cerebrospinal fluid and lymph. The lipid components of lipoproteins are insoluble in water.
What are KYLO microns?
Reviewed on 3/29/2021. Chylomicron: A small fat globule composed of protein and lipid (fat). Chylomicrons are found in the blood and lymphatic fluid where they serve to transport fat from its port of entry in the intestine to the liver and to adipose (fat) tissue.