Question

Which statement about the cell membrane is true?
Responses

It is present in animal cells only.
It is present in animal cells only.

It contains cellulose and sugars that are involved in communication.
It contains cellulose and sugars that are involved in communication.

It prevents harmful substances from entering a cell.
It prevents harmful substances from entering a cell.

It is rigid and elastic for supporting the cell’s shape.
It is rigid and elastic for supporting the cell’s shape.

Answer 1

It prevents harmful substances from entering a cell.

The cell (plasma) membrane is a selectively permeable barrier that regulates what enters and leaves the cell, helping keep out harmful substances.