yes. they are permeable to to the things that they need and the things that they don t they just don t take it in
Selectively permeable.
its selectivly permeable which means it lets certain materials enter and leave the cell
Plasma membranes are selectively permeable.
Cell membranes are selectively permeable while cell walls are semi-selectively permeable. Keep in mind that only low level organisms, like plants, have cell walls.
Cell membranes are indeed selectively permeable.
Selectively permeable
A cell membrane is found on both plant and animal cells it selectively chooses what substances may enter or leave the cell. Hence the term selectively permeable. For a more advanced explanation I recommend you research protein icebergs and the different types of transport a membrane can take part in. Example active transport
A membrane is selectively permeable.
Animal cell membranes are a semi-permeable membrane.
it is not call ed the outer membrane, its the cell wall. It does the same thing like the cell membrane, but the cell wall is much for stricter with objects coming in and out of cell, what is call, selectivly permeable
Plasma membrane
Osmosis