Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 1 - No. 33)
Which of the following best describes a selectively permeable membrane?
A membrane that allows all substances to pass through it freely.
A membrane that allows only certain substances to pass through it.
A membrane that prevents all substances from passing through it.
A membrane that facilitates active transport.
Explanation
A selectively permeable membrane controls what substances can pass through, like the cell membrane
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