Which of the following statements best describes what happens when a pacterial cell is placed in a solution containing 5% NaCl? The cell will undergo osmotic lysis. O Water will move out of the cell. O No change will result; the solution is isotonic. O Water will move into the cell. O Sucrose will move into the cell from a higher to a lower concentration.
The capacity of a solvent to induce cells to shrink or swell is referred to as tonicity. A semipermeable membrane permits just a small amount of ions or molecules to pass through it.
Osmosis is the process of moving water from a low-solute-concentration zone to a high-solute-concentration zone across a semipermeable membrane.
An isotonic solution has the same concentration of ions or molecules on both sides of a semipermeable membrane. A hypertonic solution is one that contains a higher concentration of solutes than the cells themselves. A hypotonic solution is a solution with a lower concentration of solutes than that found inside the cells.
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