What are Stem Cells? Knowledge center home » stem cell research » all about stem cells » what are stem cells?
Stem cells are a class of undifferentiated cells that are able to differentiate into specialized cell types. Commonly, stem cells come from two main sources: Embryos formed during the blastocyst phase of embryological development (embryonic stem cells) and Adult tissue (adult stem cells). Stem Cell Basics. This primer on stem cells is intended for anyone who wishes to learn more about the biological properties of stem cells, the important questions about stem cells that are the focus of scientific research, and the potential use of stem cells in research and in treating disease.
The primer includes information about stem cells derived from embryonic and non-embryonic tissues. Much of the information included here is about stem cells derived from human tissues, but some studies of animal-derived stem cells are also described. The NIH developed this primer to help readers understand the answers to questions such as: What are stem cells? Cells and Organelles. Cells and Organelles Generic Eukaryotic Cell One of the places to which vesicles travel is the Golgi apparatus or Golgi bodies.
These look like stacks of water-balloon-pancakes. They are sort of like the shipping and receiving department of the cell.