What is endocytosis mediated by the receptor?
endocytosis mediated by the receptor includes the mechanism that cells eat and spend large molecules. Some types of molecules are combined with receptor proteins that are built into the plasma membrane. After closing inside, the plasma membrane forms a vesicle around a molecule that is internalized by a cell. Another name of this process is endocytosis dependent on clathrin.
molecules that bind to receptors are called ligands. The receptors are located in the boxes of the coated protein area of the plasma membrane. When the ligand is connected to the membrane, it is closed and the coating separates. The vesic is then called an endosome that is further divided into two separate vesicles. Returns to the plasma membrane recycle receptors while the remaining vesicles are bound to the lysosome. The content is distributed by lysosome and incorporated into the cell cytosol.
lipoproteins Ow-Hustots (LDL) are transported to cells by endocytosis mediated by the receptor. LDL that is active in transporting lipids from liver toother areas of the body, allow to move cholesterol and other lipids in the blood and water -based lymph. Otherwise, clusters of fat hover and disrupt normal blood function.
doctors usually order a laboratory test known as the profile of blood lipids, which measures the concentration of fat, cholesterol and lipoproteins responsible for their transmission. High blood cholesterol is a risk factor for cardiovascular disease. Although cells require it, cholesterol, which remains in the bloodstream, can lead to plaque formation on arterial walls.
Iron is transmitted by glycoprotein by endocytosis mediated by the receptor. Produced and stored in the liver, transferrin plays a key role in iron transport from a small intestine where it is absorbed. In this case, transferrin receptors remain connected to the ligand, which is slightly different from LDL metabolism.
In addition to endocytosisThe forged receptor works several other types of endocytotic mechanisms in biological organisms. These mechanisms include pinocytosis and phagocytosis. Fagocytosis, which literally means "eating cells", is a process during which the cell receives particles such as bacteria and food. Anti -chopping and white blood cells are used.
with phagocytosis, the particle connected to the cell surface is closed in the folds of the plasma membrane. Folds consists of a vacuolus, a type of membrane bag. The digestion of the particle is combined with a vacuum.
Pinocytosis literally means "drinking cells". Small droplets of liquid are taken into the cell. The droplets are caught at the points of the plasma membrane and create small vesicles that resemble small bubbles. The fluid inside the vesic is dissected to the cytosol.