Biology
Which is not a function of the cell membrane?

Helps substances pass from the cytoplasm into the nucleus
Keeps materials within the cell separated from the environment outside the cell
Helps control the movement of materials into and out of the cell
Allows the cell to change shape under pressure

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Biology
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?

Exact concentration of solution is not given
All are incorrect
Character of semi permeable membrane is not given
The flow of solution is not possible through semi permeable membrane

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