Which structure controls the movement of materials into and out of the cell?
1 Answer
Explanation:
The Fluid Mosaic model of the cell membrane suggests that embedded within the layers are a series of proteins specially designed to channel specific materials.
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Some channel a specific material in both directions, some channel a given material only in one direction. Some particles are small enough and uncharged enough that they can pass through the membrane without any help!
A series of contractile "muscle-like" fibers within the cell can cause the membrane to warp and fold to engulf particles or fluid via a process known as endocytosis.
These same fibers can push fluid or particles out of the cell via the process exocytosis.
The cell membrane has a wide variety of strategies it can employ to move specific things in and out of the cell and is an important part of a cell's function (and survival)
