When a red blood cell is placed in a hypertonic solution, it shrinks as water is drawn out of the cell and into the surrounding solution. If the same blood cell is placed in a hypotonic solution, the blood cell grows in size. Blood cells in isotonic solutions do not shrink or swell.Continue Reading
The reason that blood cells change size when placed in solution with different salt concentration is due to the process of osmosis. Osmosis causes solutions with high salt concentrations to draw the water out of areas with low salt concentration.
There are a few exceptions to this phenomenon. Blood cells may draw water and burst when placed in a hypertonic solution under a few special occasions. Some diseases effect the structural integrity of blood cells. Additionally, when human blood cells are exposed to near freezing temperatures, they may draw water and burst.
Osmosis is an important phenomenon for living systems. The amount of salt in a given solution exhibits a tendency to diffuse through the environment, eventually resulting in equilibrium. In addition to blood cells, kidneys work by using osmotic principles. Kidneys filter an animal’s blood to remove excess salt and balance the amount of water in the animal.Learn more about Biology
The range for a normal red blood cell count is 4.5 to 5.5 million cells per microliter for men and 4 to 5 million cells per microliter for women, according to WebMD. Healthy children and babies should typically have between 3.8 and 6.1 million cells per microliter.Full Answer >
Normal red blood cell counts range from 4.2 to 5.4 million cells in women and 4.7 to 6.1 million cells per microliter in men, according to the National Library of Medicine. Healthy persons should have 4,500 to 10,000 white blood cells per microliter of blood.Full Answer >
Normal red blood cell counts are between 3.9 and 5.7 million cells per microliter, white blood counts range from 3,500 to 10,500 cells per microliter, and platelet counts range between 150,000 to 450,000 cells per microliter, says Mayo Clinic. Blood count numbers help doctors diagnose infections and other disorders.Full Answer >
A normal red blood cell count in a urine test is 4 red blood cells or less per high power field, according to MedlinePlus. This is expressed as 4 RBC/HPF. It is normal for results to vary slightly from lab to lab.Full Answer >