I keep getting “Cell membrane” questions wrong in Cell: The Unit of Life. What's the trap?
thinking the membrane lets everything pass freely.
The usual trap: thinking the membrane lets everything pass freely. How to avoid it: 'selectively permeable' — it chooses what enters and leaves. Go back to the definition — a selectively permeable boundary described by the fluid-mosaic model.
Key point
Cell membrane
Common mistake
thinking the membrane lets everything pass freely.
Memory tip
'selectively permeable' — it chooses what enters and leaves.
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