Red blood cells that are put in a dilute salt solution swell because of osmosis. This process causes red blood cells to swell in hypotonic solutions because the liquid tries to dilute the cells' solution since it tries to equalize the solution's tonicities.
A solution containing a lower concentration of salt than living red blood cells would be a hypotonic solution. This means that the solution has a lower solute concentration compared to the red blood cells, causing them to swell and potentially burst due to the influx of water.
Provided the concentration of salt is higher than the salt concentration in the red blood cell, the red blood cell, through the process of osmosis and the principal of diffusion, will shrink, as water flows from within the red blood cell to the solution
Try it yourself !
The observed shrinkage of red blood cells in the 2% salt solution is due to water moving out of the cells via osmosis to balance the high salt concentration outside. In the 0.4% salt solution, water moves into the red blood cells via osmosis causing them to swell and burst due to the excess internal pressure. This demonstrates the importance of maintaining a balance of solute concentration to prevent cell damage.
It's one of these answers: a. The red blood cells will absorb water and increase in size. b. The red blood cells will lose water and decrease in size. c. The red blood cells will first absorb water, then lose water and maintain their normal size. d. The red blood cells will first lose water, then absorb water, and finally double in size. A is wrong, just let you know. Still trying to figure out the answer myself.
cells shrink because salt water is hypertonic solution.
Red blood cells in a hypertonic solution will shrink. This occurs as water moves out of the red blood cell.
Iso means same, therefore the salt solution concentration is the same as the concentration of salt within the blood cells. So nothing happens - the RBC's remain the same (no shrinking/crenating or swelling/lysing)
Red blood cells in 10% salt solution
A solution containing a lower concentration of salt than living red blood cells would be a hypotonic solution. This means that the solution has a lower solute concentration compared to the red blood cells, causing them to swell and potentially burst due to the influx of water.
Provided the concentration of salt is higher than the salt concentration in the red blood cell, the red blood cell, through the process of osmosis and the principal of diffusion, will shrink, as water flows from within the red blood cell to the solution
A hypotonic solution will draw water from red blood cells or Elodea cells. In a hypotonic solution, the concentration of solutes outside the cell is lower than inside the cell, leading to water entering the cell by osmosis to equalize the concentration. This causes the cells to swell and potentially burst.
This depends on the concentration of the salt solution. If the water potential of the salt solution is greater (less concentrated) than the cell sap of the potato cells, water would move into the potato cells, increasing the size of the potato strip. If the water potential of the salt solution is lower (more concentrated) than the cell sap of the potato cells, water would move out of the potato cells in the salt solution, decreasing the size of the potato strip.
Try it yourself !
The observed shrinkage of red blood cells in the 2% salt solution is due to water moving out of the cells via osmosis to balance the high salt concentration outside. In the 0.4% salt solution, water moves into the red blood cells via osmosis causing them to swell and burst due to the excess internal pressure. This demonstrates the importance of maintaining a balance of solute concentration to prevent cell damage.
It's one of these answers: a. The red blood cells will absorb water and increase in size. b. The red blood cells will lose water and decrease in size. c. The red blood cells will first absorb water, then lose water and maintain their normal size. d. The red blood cells will first lose water, then absorb water, and finally double in size. A is wrong, just let you know. Still trying to figure out the answer myself.
Red blood cells will swell when placed into a solution of pure water. This is due to the osmolarity. Normal blood osmolarity is around 310 milliosmoles. The osmolarity difference when putting the red blood cell from blood into water will cause swelling of the cell. Osmotic pressure will be driving water from the environment into the cell in an effort to create equal osmotic pressures in the two environments, the cytoplasm of the red blood cell and the water solution. Ultimately, the too much water will flow into the red blood cells and they will inevitably lyse.