The cell membrane controls what enter and leaves the cell, it also gives the cell shape.
The Cell Membrane is a thin, flexible barrier around the Cell; and it regulates what enters and leaves the Cell.
The next closely related organelle is the Golgi Complex or Apparatus.
The Golgi Complex is an organelle that modifies, packages, and transports material out of the Cell by using vesicles ( small membrane sacs or "packages" ). Nevertheless, the Nucleus, I believe, is what actually controls the Golgi Complex (and thus regulates what goes out). The problem with this is that the Golgi Complex has no power whatsoever to regulate what goes in.
So your best bet is The Cell Membrane. To give an excuse supporting this answer, you can think of the Cell Membrane as the Skin of the cell. Skin in humans is consider an organ, thus, Cell membranes could be considered Organelles.
The Cell Membrane or Plasma membrane controls what goes in or out of a cell.
golgi body
The cell membrane and the receptor proteins control what enters and leaves the cell, it is no specific one organelle
cell membrane
Cell wall
Cell Wall
The cell membrane, it regulates what enters and exits the cell. The cell membrane only exists in animal cells; plants have a cell wall, but no cell membrane.
The Cell Membrane protects the cell and regulates what substances enter and leave it. It is like the "gate keeper"
The cell membrane determines what comes in and what goes out. Water goes in and out by osmosis which is a passive method. Others require the help of proteins that act as doorways. These require energy and the method is called active transportation.
The Cell membrane
The cell membrane (phospholipid bilayer) regulates what comes and goes in cells.
A body membrane regulates what goes in the body in general, but the cell membrane regulates what goes in and out if the cell.
Regulates what goes in and out of the cell. :)
The cell membrane in animal cells. The cell wall in plant cells.
cell membrane
Plasma membrane
No. It has a function to maintain the difference between the inside and the outside of the cell is not considered an organelle (little organ).
It regulates what goes in and out of the cell.
cell membrane
The plasma membrane selectively controls movement of materials into and out of the cell, and has receptors for hormones and enzymes. The generic term for these two processes is endocytosis (material moved into the cell) and exocytosis (movement of material out of the cell).
Cell wall