This should be compared to something before determination can be done. For ex. if relative to blood, 2.8 % of Nacl will cause crenation since it's more hepertonic than blood. Liquid/solute in the blood will then difuse to go out (fr its low concentration) of the RBC cell to a higher concentration wich is Nacl.
2% NaCl is hypertonic to red blood cells causing them to shrink and crenate due to water moving out of the cells by osmosis. Hemolysis is likely to occur in hypotonic solutions where red blood cells swell and burst.
Hemolysis
None
False. Crenation, plasmolysis, and hemolysis are all related to osmotic processes in cells, but turgor pressure is not directly equivalent to hemolysis. Turgor pressure is the pressure exerted by the fluid inside plant cells against the cell wall, while hemolysis refers to the bursting of red blood cells.
Crenation is the contraction of a cell after exposure to a hypertonic solution, due to the loss of water through osmosis.Hemolysis is the breakdown of red blood cells.
If you expose red blood cells to a high concentration of NaCl (salt), water will move out of the cells through osmosis, causing them to shrink and potentially undergo hemolysis (bursting). This process is known as crenation.
A 2 percent solution of sodium chloride is considered isotonic to red blood cells, meaning it will not cause crenation (shriveling) or hemolysis (bursting). Isotonic solutions have the same osmotic pressure as red blood cells, allowing for equilibrium and maintaining cell integrity.
In a hypotonic solution, red blood cells swell and undergo hemolysis, while in a hypertonic solution, they lose water and undergo crenation.
Hemolysis typically occurs in red blood cells when they are exposed to a NaCl concentration below approximately 0.45% (or 0.15 M). At this concentration, the osmotic pressure causes water to enter the cells, leading to swelling and eventual rupture. Conversely, NaCl concentrations above this level are generally isotonic or hypertonic, preventing hemolysis.
Red blood cells would exhibit crenation in a 5.0 percent solution of glucose. This is because the solution has a higher solute concentration than the cytoplasm of red blood cells, leading to water leaving the cells causing them to shrink and exhibit crenation.
i = isotonic molar [glucose] / isotonic molar [NaCl] i = 14 M / 7 M = 2 i = isotonic molar [glucose] / isotonic molar [NaCl] i = 14 M / 7 M = 2 i = isotonic molar [glucose] / isotonic molar [NaCl] i = 14 M / 7 M = 2 i = isotonic molar [glucose] / isotonic molar [NaCl] i = 14 M / 7 M = 2
Alpha hemolysis is partial hemolysis resulting in a greenish discoloration of the agar, beta hemolysis is complete hemolysis resulting in a clear zone around the colony, and gamma hemolysis is no hemolysis observed.