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What does selectively permeable membrane mean

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Selective permeability membrane is the membrane that allows certain organisms to come in and out of the cell.
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Answer:

The answer is: It means it is a membrane that will allow certain molecules or ions to pass through it by means of active or passive transport.

Explanation:

All cells are enclosed with a cell membrane. The term, selectively permeable, refers to :

the membrane allows some substances or molecules to enter the cells, and others to be prevented from entering. It also allows substances to leave the cell.

This process can be done by :

Active transport -requires the cell to expend energy to move the materials.

Passive transport- it can be done without using cellular energy.

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