1) Osmosis is the movement of? a) water from strong solution to a more dilute one b) Salt from a stonger solution to a weaker one c) Water from a weaker solution to a stronger one d) Salt from a weaker solution to a stronger one 2) A semi permeable membrane will allow what to cross? a) water b) sugar c) salt d) protein e) starch 3) Osmosis can only take place in cells? a) Yes b) No 4) sugar can pass freely in and out of a cell? a) Yes b) No 5) salt can pass freely into a cell? a) Yes b) No 6) water can pass freely into and out of a cell? a) Yes b) No 7) A plant cell that has lost water to a solution is called? a) turgid b) plasmolysed c) isotonic 8) a turgid cell is as swollen with water as possible and no more can pass in? a) True b) False 9) Isotonic means? a) the solution is stronger than the concentration of the cell b) the solution is the same concentration as the cell c) the solution is weaker than theconcentration of the cell 10) An equal amount of water will pass in both directions when a cell is in an iostonic solution? a) True b) False 11) A piece of potato placed in a solution of higher water concentration will? a) become flaccid and gain mass b) become flaccid and lose mass c) become turgid and gain mass d) become turgid and lose mass 12) A piece of potato placed in a solution of lower water concentration will? a) become flaccid and gain mass b) become flaccid and lose mass c) become turgid and gain mass d) become turgid and lose mass

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