The cell membrane is selectively permeable, it can be best deduced by
A
The entry of water
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B
The entry of selective mineral salts
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C
Both A and B
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D
The rise of sap in plants
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Solution
The correct option is C Both A and B A selectively permeable membrane will allow free passage of solvent or water molecules, however, the entry of solute particles will be selectively allowed. In other words, not all but selected solute particles will be allowed to pass through.