Cord Blood Stem Cells Information

embryonic stem cells! HELP PLEASE!?

hey. how do embryonic stem cells get their nutrition? if you do not know the answer to this can you please tell me how they either perform regulation (control and coordination of their activities) or transport. HELP IS APPRECIATED THANKS

Public Comments

1. stem cells are special regenerative cells taken from individuals they have the capacity to turn into any type of organ in the body they are taken out from cord blood or bone marrow or even skin they are taken out and put in special medium with chemicals which help in providing nutrients for eg like agar agar gels etc then the genetic material - genes are arranged in such away that certain desired organ or some other thing finally comes up they are placed in egg cells of living beings to produce desired babies with desired characters where they nurture themselves it all comes under genetic engineering. genome manipulation. genes carry certain characters and certain functions already programmed, just by arranging them in certain fashion they start working and give desired output To ensure self-renewal, stem cells undergo two types of cell division (see Stem cell division and differentiation diagram). Symmetric division gives rise to two identical daughter cells both endowed with stem cell properties. Asymmetric division, on the other hand, produces only one stem cell and a progenitor cell with limited self-renewal potential. Progenitors can go through several rounds of cell division before terminally differentiating into a mature cell. It is possible that the molecular distinction between symmetric and asymmetric divisions lies in differential segregation of cell membrane proteins (such as receptors) between the daughter cells. When unspecialized stem cells give rise to specialized cells, the process is called differentiation. Scientists are just beginning to understand the signals inside and outside cells that trigger stem cell differentiation. The internal signals are controlled by a cell's genes, which are interspersed across long strands of DNA, and carry coded instructions for all the structures and functions of a cell. The external signals for cell differentiation include chemicals secreted by other cells, physical contact with neighboring cells, and certain molecules in the microenvironment. Therefore, many questions about stem cell differentiation remain. For example, are the internal and external signals for cell differentiation similar for all kinds of stem cells? Can specific sets of signals be identified that promote differentiation into specific cell types? Addressing these questions is critical because the answers may lead scientists to find new ways of controlling stem cell differentiation in the laboratory, thereby growing cells or tissues that can be used for specific purposes including cell-based therapies. .theres somuch to be told but this is very basic information andif go deep u may not understand and i may also get confused....lol
2. In stem (as in plant stems, I hope you mean) cells, the cells get their energy from photosynthesis. The xylem and phloem transport surgar and other substances through the plant to a certain part (I'm not quite sure where that is- it's been a long time, but I think it's in the leaves) where all of the cells send the food through their many specialized parts and make food. The nucleus controls the cell. I hope this helps!