The movement of specific molecules into a cell by the infolding of vesicles containing proteins with receptor sites specific to the molecules being taken in.Group of answer choicesautophagypinocytosisexocytosisendocytosisplasmolysisphagocytosisreceptor-mediated endocytosisfacilitated diffusion
Question
The movement of specific molecules into a cell by the infolding of vesicles containing proteins with receptor sites specific to the molecules being taken in.Group of answer choicesautophagypinocytosisexocytosisendocytosisplasmolysisphagocytosisreceptor-mediated endocytosisfacilitated diffusion
Solution
The process described is receptor-mediated endocytosis. This is a mode of endocytosis in which specific molecules are ingested into the cell. The specificity results from a receptor-ligand interaction. Here's how it works:
- The specific molecule, or ligand, binds to its corresponding receptor on the cell surface.
- The plasma membrane then invaginates, or folds in, around these receptor-ligand complexes, forming a coated pit.
- This coated pit deepens and eventually pinches off to form a coated vesicle within the cytoplasm of the cell.
- The coated vesicle sheds its coat and can then fuse with a lysosome, where the ligands are released for use within the cell. The receptors are typically recycled back to the
Similar Questions
The cellular secretion of biological molecules by the fusion of vesicles containing them with the plasma membrane.Group of answer choicesendocytosisreceptor-mediated endocytosisplasmolysisautophagyphagocytosisexocytosispinocytosisfacilitated diffusion
Type of transport that enables a cell to acquire bulk quantities of specific substances.Group of answer choicesphagocytosisautophagyplasmolysisfacilitated diffusionendocytosisexocytosisreceptor-mediated endocytosispinocytosis
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