Question

why is the plasma membrane called the selectively permeable membrane?​

Answer 1

Answer:

Explanation:

Plasma membrane is called selectively permeable because only selected materials are able to pass through the membrane.

So if you were asked if plasma membrane was permeable the correct answer would be no. You would specifically have to mention selectively permeable.

Answer 2

Answer:

plasma membrane is selectively permeable because it allows only selective ,i.e،, allows only some things to pass through that are necessary for the cell.

it doesn't allows the harmful substances to pass through it.