The main function of a selectively permeable cell membrane is to maintain the balance of transporting molecules inside the cell with respect to the outer environment.
What is a selectively permeable membrane?
A selectively permeable membrane may be defined as a membrane that permits the passage of some molecules or ions and inhibits the passage of others with respect to cells.
It is a type of membrane that prevent the passage of numerous toxic compounds inside the cell. It also has the capability to make transport of the molecules by means of the active as well as passive method.
Through this membrane, only specific molecules like water easily pass through the cell membrane directly. While the transport of other required molecules require energy, and hence the process known as active transport.
Therefore, the main function of a selectively permeable cell membrane is to maintain the balance of transporting molecules inside the cell with respect to the outer environment.
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