In receptor-mediated endocytosis, receptor molecules initially project to the outside of the cell. Where do they end up after endocytosis? a. on the inside surface of the cell membrane b. on the outer surface of the nucleus c. on the outside of vesicles d. on the inside surface of the vesicle
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Step 1: In receptor-mediated endocytosis, receptor molecules initially project to the outside of the cell. Show more…
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Receptor-mediated endocytosis produces vesicles that typically deliver the items they take up to the nucleus of the cell. carry macromolecules and cells for delivery to the lysosomal compartment. assist in the removal of certain items from the cytosol of the cell. when formed cause there to be more total surface area available in the plasma membrane. have receptors which can indicate at their cytosolic side if ligands are bound or not on their extracellular/ lumen side.
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Place in order the following events of receptor-mediated endocytosis. (1) Clathrin coat disappears. (2) Receptors collect in a coated pit covered with clathrin on the cytoplasmic side. (3) Receptors recognize and bind specific molecules. (4) Endocytic vesicle may fuse with lysosome whereas receptors are recycled to the cell surface. (5) Pits deepen and pinch free of plasma membrane to form endocytic vesicles. a. $ 4,1,2,5,3$ b. $ 2,1,3,5,4$ c. $ 3,2,5,1,4$ d. $ 4,1,5,2,3$ e. $ 3,1,2,4,5$
What happens to the membrane of a vesicle after exocytosis? a. It leaves the cell. b. It is disassembled by the cell. c. It fuses with and becomes part of the plasma membrane. d. It is used again in another exocytosis event.
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