Examlex
Which one of the following organizations is part of the Executive Office of the President?
Cellular Membrane
The cellular membrane, or plasma membrane, is the biological membrane that separates the interior of all cells from the outside environment, controlling the movement of substances in and out of cells.
Exocytosis
The active transport of materials out of the cell by fusion of cytoplasmic vesicles with the plasma membrane. Compare with endocytosis.
Plasma Membrane
The semipermeable membrane surrounding the cytoplasm of a cell, responsible for controlling the passage of substances in and out of the cell.
Vesicle
(vesicle) Any small sac, especially a small, spherical, membrane-enclosed compartment, within the cytoplasm.
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