The plasma membrane could be considered the gate to the city. :)
Fence
if a cell membrane was in a city what would it be?
the border to mexico
Probably the nucleus of the cell as it largely directs the activity of the rest of the cell.
AnswerCellophane 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 CraigMany 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.
The answers may be found in your textbooks.
cell membrane fence nucleus townhall cytoskeleton bridges and buildings scrap yard lysosomes
I think the border of the city or like a fence or wall would be the best one I can think of.
if a cell membrane was in a city what would it be?
A great city/cell analogy for a cell membrane is a toll booth for it decides what is allowed in and out of a cell. If you don't have a toll booth in your town, make it police men on duty for they do the same thing.
the border to mexico
A mayor
to generate the cell supply
a carpenter's union
A cell makes up a body as a city makes up a state.
Probably the nucleus of the cell as it largely directs the activity of the rest of the cell.
Post Office
A city cell analogy for ribosomes is a restaurant. It provides the citizens with protein just ribosomes which provide nutrients for the cell. Hope this helped!