Question

2. Why is the plasma membrane
called a selectively permeable
membrane?​

Answer 1

Explanation:

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.

Answer 2

Answer:

the plasma membrane is called a semi-permeable membrane as it allows only certain substances to pass through it unlike the cell wall which allows everything through it