The cell membrane would be a locked door (for example) so that ONLY the people with a key can get in and the people without a key would not be able to get in.
if a cell membrane was in a city what would it be?
In a cell city analogy, the plasma membrane can be compared to the city walls as it surrounds and protects the cell, controlling what enters and exits the cell. Just like city walls, the plasma membrane also helps maintain the cell's shape and provides structural support.
I think the border of the city or like a fence or wall would be the best one I can think of.
The cell membrane - without which cytoplasm is meaningless - serves to contain cytoplasm just as a wall would contain a city.
what would best represent a cell membrane in an animalcell what would best represent a cell membrane in an animalcell
jail
A good item for a cell membrane would be a thin plastic or cardboard
The Cell Wall would be the wall surrounding the city (no equivalent in modern cities). In comparison, the membrane would be the city border patrol. Nobody is going to get past the cell wall, but once they do whether or not they enter the cell (city) is determined by the membrane and its proteins (border patrol)
No, all cells have a cell membrane that acts as a protective barrier around the cell. It controls the movement of substances in and out of the cell, maintaining its internal environment. Without a cell membrane, the cell would not be able to survive.
The cell membrane of a cell with low mass would be better able to feed all the cytoplasm of the cell. This is because a thinner membrane would allow for more efficient transport of nutrients and waste products in and out of the cell.
It's the plasma membrane. This is because it acts like a gate regulating what can enter and leave the cell. If the plasma membrane did not exist the cell would die because it might take in something that could kill it.
The cell would die as it couldn't maintain homeostasis.