Question

PLZ HELP!!

Why do you think only one material is able to pass through the membrane? *think about what kind of materials can diffuse through the membrane*

Answer 1

Here is a picture that might help :)

Answer 2

Because the cell membrane (plasmamembrane) is a membrane. Very simply put, you can think of it like a piece of cloth. If you have a piece of cloth, water can move through the small holes, but something large, like e.g. a piece of cheese cannot.

Sana maka tulong