To put it simply, it is the cell membrane. You can have transport vesicles ect, but the cell membrane is the main barrier between inside and outside. It contains pumps, channels and proteins that are in charge of communication and also control movement of everything from inside and outside.
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The cell membrane controls the movement of materials that enter and exit the cell.
the cell membrane
Plasma membrane
The Cell membrane
The cell membrane is selectively-permeable to ions and organic molecules and controls the movement of substances in and out of cells.
decreased movement of molecules entering the cells decreased movement of molecules entering the cells
Cell membrance
Cell membrane
This would be the nucleus which is like the brain of the cell. it controls it - the nucleus isn't a cell, its part of a cell :)
M for membrane I would suppose.
The cell membrane is selectively-permeable to ions and organic molecules and controls the movement of substances in and out of cells.
decreased movement of molecules entering the cells decreased movement of molecules entering the cells
Cell membrance
cell membrane
The cell membrane.
Cell membrane
This would be the nucleus which is like the brain of the cell. it controls it - the nucleus isn't a cell, its part of a cell :)
osmosis
prison guard
The cell membrane regulates the movement of substances in and out of the cell.How does it do this? The phospholipid bilayer is impermeable to most substances, allowing across only small, uncharged molecules such as those of oxygen, carbon dioxide, and water. The only way for other substances to cross the membrane is via transport proteins (channel and carrier proteins). These are selective, and therefore control what enters and what leaves the cell.
The cell membrane controls the movement of materials in and out of the nucleus. This helps to support and homeostasis.