TRANSPORT ACROSS THE CELL MEMBRANE
SELECTIVE PERMEABILITY
WHY IS THE MEMBRANE CONSIDERED SELECTIVELY PERMEABLE?
- It can choose what exits and enters the cell (unique mechanism), it chooses what the cell needs to perform specific functions/ what is best for the cell at the time, what it needs, prevents harmful substances from entering the cell.
- EXAMPLE: If the membrane only needs Potassium than it can and will only allow Potassium in the cell (channel)
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