LDL-mediated Cholesterol Delivery to Cells

The video explains how LDL delivers cholesterol to cells, highlighting its role in stabilizing cell membranes and its transformation into molecules like steroids and bile acids. Cholesterol is packaged as cholesteryl ester within lipoproteins. Cells regulate cholesterol intake through LDL receptors, which increase when cholesterol is low. LDL particles bind to these receptors and are internalized via receptor-mediated endocytosis. The endosome fuses with a lysosome, breaking down LDL components. Cholesterol is then processed and transported to cell membranes or converted into other molecules.

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