Cellophane is a good analogy. It is a semi-permeable membrane which is permeable to water and small molecules, but not to large molecules, and can be used to demonstrate the principal of osmosis. Cellophane is made out of plant fibers called cellulose but living membranes are made out of layers of fat cells.
-DJ Craig
Many textbooks will compare a cell membrane to the fluid mosaic model, which means that the parts of the membrane (phospholipids, cholesterol, proteins etc.) are not stuck in one place; they move around and can pass by one another while still keeping the integrity of the membrane. That is mainly for the structure, but structure always lends to function.
I think it can sometimes be referred to as plasma membrane and in plants they have a cell membrane and a cell wall (don't confuse the two)! Whoever just said that gave you the wrong answer. There is a nuclear membrane, and it's not very easy to get cell and nucleus membrane confused, so i suggest the person who first answered your question go back to second grade, because - sorry to break it to you, but - they're wrong. Please try not to take advice from them, because i can assure you, it will most likely not be valid. Now, what kind of analogy do you need? A city analogy? A country analogy? Whatever it is, let me know, and maybe i can find it for you. :)
A cell membrane is like a flexible plastic window with tiny openings and dark tacks stuck all over it.
the cell membrane is like the outside of a Baseball. If you think about it. It can also be a gate guarding a factory compound.
the anology of the cell membrane is a tatoo
A fence around a house- it keeps things from getting out and in, protecting the house, and also decide what goes in and what comes out.
A locked gate or door.
cell membrane
the "power house" of the cell
where is the cell control membrane and the cell membrane
Cell membrane
the cell membrane
MY brother is very ugly. His name is Bob Big Beut. I kill yoou. Americans die. KaKa po po= Amerecain
The cell membrane controls movement of materials in and out of the cell.
The selective permeability of the cell membrane
cell membrane
A bodyguard because the nuclear membrane protects the nucleus just like a bodyguard protects celebrities
cell membrane
Cell Membrane
There are a great many different analogies for cell parts that are used to teach. A biology teacher may compare organelles to the organs in the human body for example.
the cell membrane is as flexible barrier outside of the cell.
the "power house" of the cell
where is the cell control membrane and the cell membrane
Cell membrane