Question

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Answer 1

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Osmosis The movement of certain molecules within a solution across a membrane. The movement is always from the solution where the concentration of some chemical is higher to the solution where the concentration of that chemical is lower.

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Answer 2

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Answer

Osmosis is the movement of solvent from a region of lower solute concentration to a region of higher solute concentration through a semi-permeable membrane.

Additional Information

There are three types of osmosis solutions: the isotonic solution, hypotonic solution, and hypertonic solution.  

# An isotonic solution is when the solute concentration is balanced with the concentration inside the cell. In an isotonic solution, the water movement still moves between the solution, but the rates are the same in both directions, thus the water movement is balanced between the inside of the cell and the outside of the cell.

# A hypotonic solution is when the solute concentration is lower than the concentration inside the cell. In a hypotonic solution, the water moves into the cell and can cause the cell to swell; cells that don’t have a cell wall, such as animal cells, could explode in this type of solution.

# A hypertonic solution is when the solute concentration is higher than the concentration inside the cell. In a hypertonic solution, the water moves out of the cell and causes the cell to shrivel.