Question

What is a cell membrane

Answer 1

The cell membrane is a thin but tough wall that surrounds the cell. It allows useful substances to enter the cell and blocks the entry of harmful ones. It also forces out waster products.

Step-by-step explanation:

Answer 2

a semipermeable membrane

Step-by-step explanation:

This is the same as the plasma membrane, this describes the semipermeable membrane that surrounds the cytoplasm of a cell.