what does a cell membrane act like when it surrounds a cell?
Cell Membrane. The cell membrane surrounds the cell. This membrane acts like a barrier for the cell, meaning that it allows only certain things to pass in or out of the cell but not everything. Each organelle inside a Eukaryotic cell is also surrounded by a membrane.These membranes serve as a selective barrier for the organelles.ell Membrane. The cell membrane surrounds the cell. This membrane acts like a barrier for the cell, meaning that it allows only certain things to pass in or out of the cell but not everything. Each organelle inside a Eukaryotic cell is also surrounded by a membrane.