will red blood cells undergo hemolysis, crenation or no change at all.
10%m/v NaCl
2% m/v glucose
H2O
5% m/v glucose
how would I come up with the answer I read the chapter and i'm confused
It's all here. The last links defines what an isotonic solution is for NaCl.
https://en.wikipedia.org/wiki/Tonicity
http://differentmedicalcareers.com/hypertonic-hypotonic-isotonic-solutions/
https://www.google.com/search?q=what+concentration+NaCl+is+isotoinic&ie=utf-8&oe=utf-8
To determine whether red blood cells will undergo hemolysis, crenation, or remain unchanged when placed in various solutions, you need to consider the tonicity of each solution.
1. 10%m/v NaCl: This solution has a high concentration of salt, which means it is hypertonic compared to the red blood cells (which have a concentration of about 0.9% NaCl). When red blood cells are placed in a hypertonic solution, water from inside the cells will move out towards the higher concentration of salt outside the cells. As a result, the red blood cells will undergo crenation (shrinking and becoming wrinkled).
2. 2%m/v glucose: This solution is isotonic to the red blood cells, meaning it has the same concentration of solutes as the cells. When red blood cells are placed in an isotonic solution, there is no net movement of water, and the cells will remain unchanged.
3. H2O: Pure water is hypotonic compared to the red blood cells. When red blood cells are placed in a hypotonic solution, water will move into the cells to balance the concentrations. If too much water enters the cells, they may undergo hemolysis (bursting).
4. 5%m/v glucose: This solution is hypotonic compared to the red blood cells but not as hypotonic as pure water. Red blood cells placed in this solution will experience a net movement of water into the cells, but it will be less than in pure water. Therefore, the cells are unlikely to undergo hemolysis, and they may appear slightly swollen and unchanged.
Remember, hemolysis refers to the bursting or destruction of red blood cells, crenation refers to the shrinking and wrinkling of red blood cells, and no change refers to the cells maintaining their normal shape and size.
To determine what happens to red blood cells in different solutions, you need to understand the concepts of osmosis, tonicity, and the movement of water.
1. Hemolysis: This refers to the rupture or bursting of red blood cells. It occurs when a cell is placed in a hypotonic solution, where the solute concentration outside the cell is lower than inside the cell. In this case, water moves into the cell causing it to swell and eventually burst.
2. Crenation: This refers to the shrinkage or shriveling of red blood cells. It occurs when a cell is placed in a hypertonic solution, where the solute concentration outside the cell is higher than inside the cell. In this case, water moves out of the cell causing it to shrink.
Now, let's analyze the given solutions:
1. 10%m/v NaCl: This is a hypertonic solution because the concentration of NaCl is higher (10%) than in the red blood cells. Therefore, red blood cells will likely undergo crenation. Water will move out of the cells, causing them to shrink.
2. 2%m/v glucose: This is a hypotonic solution because the concentration of glucose is lower (2%) than in the red blood cells. Therefore, red blood cells will likely undergo hemolysis. Water will move into the cells, causing them to swell and potentially burst.
3. H2O: This is a hypotonic solution because it has no solutes compared to the red blood cells. Therefore, red blood cells will likely undergo hemolysis. Water will move into the cells, causing them to swell and potentially burst.
4. 5%m/v glucose: This is also a hypotonic solution because the concentration of glucose is lower (5%) than in the red blood cells. Therefore, red blood cells will likely undergo hemolysis. Water will move into the cells, causing them to swell and potentially burst.
To recap, in the given solutions, red blood cells will likely undergo hemolysis in the solutions containing 2%m/v glucose, H2O, and 5%m/v glucose. They will likely undergo crenation in the solution containing 10%m/v NaCl.