2007-01-22 11:40:14 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Biology
stem*
2007-01-22 11:41:45 · update #1
A stem cell has yet to differentiate into a particular type of cell eg heart cell, muscle cell, red blood cell and so has the potential to differentiate into many different cell types. (there are different levels of stem cells, some are more differentiated, eg a blood stem cell can become different blood cells, an embryonic stem cell can become anything).
Their second characterisitc is that they have unlimited self renewing potential; they can always make more copies of themselves.
2007-01-22 11:49:44 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A "normal" cell is specialized, ie, it has a specific task in a specific system. Stem cells are those that are not specialized yet and therefore, can potentially become any other kind of "normal" cell. Embryos are formed by stem cells that will develop all the other cells. In adults, there are also some stem cells that act as a "repairing system" when there is some damage in any of the systems in the body. This ability to become any other kind of cell is what has made them so important in scientific research. Hope it helps!!
2007-01-22 11:54:53 · answer #2 · answered by curious 1 · 0⤊ 0⤋
Stem cells are undifferentiated. They can become (almost) any of the 200+ types of cells in the body. Regular cells have differentiated and therefore cannot become other tissue cells.
2007-01-22 11:50:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋
the diffrence bewteen a stem cell and a normal cell is that a stem cell has no job unlike other cells ie skin blod and white blodd cell
thats why researchers want to do stem cell research
2007-01-22 11:47:38 · answer #4 · answered by thanhcso 3 · 0⤊ 0⤋
The stem cell is undifferentiated; that is it is not taken by any organ division of labor. Your liver cells, brain cells and heart cells have already differentiated.
2007-01-22 11:48:41 · answer #5 · answered by Anonymous · 0⤊ 0⤋