Question

why is plasma memarane called semi pearmeable membrane . 4 marks​

Answer 1

Answer:

Plasma membrane called a semi permeable membrane because it regulates the movement of substances from within to outside of the cell. This means that the plasma membrane allows the entry of some substances while preventing the movement of some other substance.

HOPE IT'S HELPFUL!!!!!!!!!!!!1

Answer 2

The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. ... It allows hydrophobic molecules and small polar molecules diffuse through the lipid layer, but does not allow ions and large polar molecules cannot diffuse through the membrane.