what is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell?
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In endocytosis, the cell membrane forms a cup-like sac around the molecule, the two lips of the cup meet around the molecule so that a vesicle is formed by the separation of that part of the cell membrane.
In endocytosis, the cell membrane forms a cup-like sac around the molecule, the two lips of the cup meet around the molecule so that a vesicle is formed by the separation of that part of the cell membrane.Explanation:
Two factors determine whether a molecule will cross a membrane: (1) the permeability of the molecule in a lipid bilayer and (2) the availability of an energy source.
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Endocytosis
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