1)'The high' has the correct definition of osmosis.
2)If you put a chip into pure water ,water will diffuse (by osmosis) INTO the chip making it turgid. In sugar solution the opposite happens..water moves OUT of the chip making it flaccid.The stronger the solution the more water is lost until it reaches the point of plasmolysis where it can't lose any more water however strong the solution.
Where the concentration of the sugar solution = the conc.of the cell sap there is no net loss or gain of water.
2007-03-16 12:25:45
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answer #1
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answered by Anonymous
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Osmosis is the diffusion of particles through a selectivly permeable cell membrane. Diffusion does not have to be through this membrane. The particles move from an area of high concentration to an area of low concentration.
If the chip is placed into pure water or a low sugar level there is a higher concentration of water outside the chip's cells so water particles diffuse in causing it to expand and become full.
If the chip is placed into a high concentration of sugar there will be a higher concentration of water inside the cells and this will diffuse out makeing the chip shrink.
If the chip is placed in a sugar solution and does not change size, the solution has the same concentration of water as the chip.
2007-03-18 08:55:51
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answer #2
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answered by Rafa-No1 3
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Osmosis is the diffusion of water molecules from a region of high water concentration to a region a low water concentration through a semi permeable membrane. (sorry just copied it from my science txt book)
Done this experiment for coursework
Your chip will decrease in weight and size as the water molecules in the chip are trying to balance the sugar solution. However the sugar molecules cannot get into the chip as they are too big and the water in the sugar solution from the chip cannot gert back as glucose molecules are blocking path thus decrease in weight and size. Theres a diagram in my text book but i cant interpret it. Google image it.
2007-03-17 06:40:53
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answer #3
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answered by dlg3579 3
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Osmosis is the net movement of a solvent across a semipermeable membrane from a region of high solvent potential to an area of low solvent potential.
It is a physical process in which a solvent moves, without input of energy, across a semipermeable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations.[1] Osmosis releases energy, and can be made to do work, as when a growing tree-root splits a stone.
Computer simulation of the process of osmosisNet movement of solvent is from the less-concentrated (hypotonic), to the more-concentrated (hypertonic) solution, which tends to reduce the difference in concentrations. This effect can be countered by increasing the pressure of the hypertonic solution, with respect to the hypotonic. The osmotic pressure is defined to be the pressure (force per unit area) required to maintain an equilibrium, with no net movement of solvent. Osmotic pressure is a colligative property, meaning that the property depends on the concentration of the solute but not on its identity.
2007-03-16 16:54:49
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answer #4
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answered by Bob S 3
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Osmosis is the diffusion of water across a semipermeable membrane. I'm not sure about the chip thing but it seems that it depends if the solution is hypotonic or hypertonic.
2007-03-16 16:45:28
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answer #5
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answered by Swamper 2
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Osmosis is the diffusion of water molecules from a region of high water concentration to a region a low water concentration through a semi permeable membrane.
2007-03-16 16:42:47
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answer #6
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answered by The High Inquisitor 4
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-Osmosis is water diffusing through a semipermeable membrane.
-Diffusion is any substance dispersing along a diffusion gradient.
(A diffusion gradient has a high concentration of a substance at one end and a low concentration at the other end. The diffusion gradient of deodorant is high in a room when you just sprayed it, and after an hour the diffusion gradient is very low because the deodorant spread.)
2007-03-16 17:01:23
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answer #7
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answered by amethyst 3
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Osmosis is the net movement of a solvent across a semipermeable membrane from a region of high solvent potential to an area of low solvent potential.
Diffusion is the movement of particles in a solution moving around in order to minimise the consentration gradient.
2007-03-16 16:54:16
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answer #8
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answered by Anonymous
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Why are you asking for help with both your English and science homework? Don't you listen to your teachers?
2007-03-17 10:28:04
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answer #9
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answered by Gladys 4
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