Question

Why is the cell membranes selectively called the permeable membrane

Answer 1

Answer:

The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. Not all molecules are free to diffuse. If plasma membrane ruptures or breaks down then molecules of some substances will freely move in and out of the cells.

Explanation:

Answer 2

Answer:

Only substances essential for the survival and functioning of the cell, are allowed to pass into the cell. Cell membranes are also called selectively permeable membranes, because they are selective in allowing entry of particles into the cell. This property of selective permeability is important because it ensures the survival of the cell.

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