A chloroplast.
It lets nutrients into the cell, and lets out wastes from it.
it lets authorized objects in and out of a plant cell; this also happens in a animal cell.
A plant's Cell Membrane is very thin and lets things pass in and out of the cell.
A plant cell has a cell membrane which controls the movement of substances in and out of the cell. :D
The cell membrane performs the function of a filter, letting good things in and bad things out. It also protects the cell from invading sources. It lets out water and lets in oxygen.
The nuclear membrane.
the cell membrane
The cell membrane protects the insides of a cell, shapes it, and lets materials flow in and out of it, like a human's skin. For plant cells, there is also a cell wall which gives a cell even more support in place of bones.
the Golgi apparatus,Golgi complex or Golgi body is an organelle which modifies hormones and proteins and then packages them into distributing amounts, then stores them until they need to be used by the cell then it secretes it making secretory vesicles that then travel to the plasma membrane and out of the cell :]
It spreads water around the plant cell so that the plant cell can urinate when needed.
It is actually found in both. In the animal cells, it is the only thing that keeps the material within the cell. And it is semi-permeable so that it only lets in certain objects, molecules and other things of the sort. In plant cells, there is a cell wall that lets close to nothing in through its walls. But there is still a cell membrane, that regulates the objects that do get through. The Cell membrane can be found in both, but usually when you are talking about it, it will usually be associated with animal cells.
Molecules can not pass through the cell membrane, because endocytosis is important for those large molecules that can not pass through the cell membrane!!