Why is the selective permeability of the plasma membrane essential for normal cell function?
1) Selective permeability allows cells to communicate with each other by sharing large and small molecules.
2) Selective permeability allows cells to bind to one another in a fluid environment.
3) Selective permeability allows cells to determine which proteins they should produce and retain.
4) Selective permeability allows cells to exclude some substances and allow others to pass into or out of the cell.