Question

Permeability of plasma mem
brane a concept of
plasma membrane​

Answer 1

Answer:

The plasma membrane is selectively permeable; hydrophobic molecules and small polar molecules can diffuse through the lipid layer, but ions and large polar molecules cannot. Integral membrane proteins enable ions and large polar molecules to pass through the membrane by passive or active transport.

Answer 2

Answer:

The cell membrane or the plasma membrane is known as a selectively permeable membrane because it regulates the movement of substances in and out of the cell . This means that the plasma membrane allows the entry of only some substances and prevents the movement of some other materials .