During osmosis, solvent particles move from an area of concentration to an area of concentration. When there is a higher concentration of solvent particles inside the cell, most solvent particles will move the cell and the cell will . When there is a higher concentration of solvent particles outside the cell, most solvent particles will move the cell and the cell will .

During osmosis, solvent particles move from an area of lower concentration to an area of higher  concentration. When there is a higher concentration of solvent particles inside the cell, most solvent particles will move  outside  the cell and the cell will smaller.  When there is a higher concentration of solvent particles outside the cell, most solvent particles will move inside the cell and the cell will larger .

Explanation:

OSMOSIS -: Osmosis is the spontaneous net migration of solvent molecules into a area of higher solute concentration through a selectively permeable membrane in the direction that appears to equalize the concentrations of the solution on both sides.  It is possible to produce osmosis to do work.

For several purposes, osmosis is essential for cells. It assists in the movement within and out of the cell of essential materials. By the mechanism of osmosis, the nutrients, water and other solutes pass in and out of the cell.  

An example of osmosis happens when a semi-permeable membrane separates a sugar solution and water at the surface. The big sugar molecules of the solution can't move into the water through the membrane. Until equilibrium is formed, at the bottom ,  small water molecules pass through the membrane.

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not only is it colder, it also becomes darker, less salty, and more dense.