Question

What is a Cell membranes

Answer 1

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

Step-by-step explanation:

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Answer 2

cell membrane is the outer boundary present around the cells functions to protect the inner cellular material from outer invaders and maintain the shape of cell

Step-by-step explanation:

Cell membrane is the outer most boundary made up of lipids and proteins.

Mainly the membrane is composed of lipid bilayer in which protein chains are embedded