Answer :

raintreelily
The cell membrane is a lipid Blair that prevents that passage of water and ions. This allows cells to maintain a higher concentration of sodium ions outside of the cell.
KerryM

Answer:

The cell membrane controls the substances that enter and exit the cell

Explanation:

The cell membrane defines the boundaries of the cell, separating the internal components from the external environment.

The membrane is a semi-permeable barrier that lets some substances in and out, but not others.

Therefore, the cell membrane controls many of the activities of the cell. As a result, it is crucial to maintain the normal functioning of the organism

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