This is for biology 1 please answer the question. Cell membranes allow certain materials in and out of the cell. How does the structure of the cell membrane relate to its structure?

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

Explanation:

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where is the diagram?

if you insert the diagram ill be able to you