Osmosis Investigation
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Introduction Osmosis is defined as the diffusion of water molecules, down a water potential gradient, across a partially permeable membrane. If the solutions on each side of the partially permeable membrane are equally concentrated then there will be no net movement of water across the membrane. If the solution outside the cell has a low concentration of solute, this causes cells to become turgid as water flows into them, or if the solution outside the cell is of high concentration the cells become plasmolysed as the water flows out. Aim The aim of this investigation is to...
Use a wider range of sucrose solutions.

Use a wider range of sucrose solutions.
?é?À When the potato was dried to remove surface liquid it was not necessarily done the same on each potato, allowing some to weigh more.
?é?À Although the osmotic potential for this investigation was estimated, a more scientific approach would have been better.
?é?À Selecting a better root vegetable to see how the results differ.
These points can all be taken into consideration for a re- test, but I believe this experiment went well and we obtained the results that proved my hypothesis and prediction.
Let"s get straight to the heart of the matter--the heart"s job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns to the heart, it follows a complicated pathway. If you were in the bloodstream,...
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The Respiratory System Organs involved are lungs, capillaries The body requires oxygen to survive as it feeds muscles, tissues, and organs. The air we inhale breathe in into our bodied consists of: GAS AIR INHALED AIR EXHALED Oxygen 21% 16% Carbon Dioxide 0.04% 4% ...
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Investigation For this experiment we plan to investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato core of a given size. Osmosis is defined as the net movement of water or any other...
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Scientific Back round: Osmosis is defined as the net movement of water or any other solution's molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as...
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Prediction Osmosis is defined as is the movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration. In a high concentration of water the amount of solute e.g. sugar is low. This could be called...
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