What is a good analogy for a cell membrane?

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You could use lots of analogies. Cell membranes keep the traffic of things going on in the cell. It also keeps stuff in or out. You could say it works like screen a door.

Answer

Perhaps a better analogy is that the cell membrane is like a border (between countries). The cell membrane (much like the border guards) control the traffic in and out of the cell.

A fun answer could be to compare it to a Club bouncer, that allows certain people in and blocks the entrance of others.

Answer

One analogy for a cell membrane is that it is like a sieve. That is because it lets smaller particles (like water) in, while stopping bigger particles that could cause the cell harm out.

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First answer by ID1266925977. Last edit by Tombo H. Contributor trust: 34 [recommend contributor]. Question popularity: 20 [recommend question]

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