Stem Cells

Stem Cells in humans

Stem cells will be cells that have not gone through differentiation. A cell that has not yet become specific is called undifferentiated. An embryo creates from a fertilised egg. Cells at the beginning phases in the development of the embryo are stem cells. If cells are taken out from the embryo called embryonic stem cells - they will separate into any cell type. Some stem cells stay in the bodies of grown-ups grown-up stem cells. Grown-up stem cells are found in restricted numbers in specific areas of the body.

Adult-up stem cells can be found in a few districts of the body, including the:

brain

eyes

blood

heart

liver

bone marrow

skin

muscle

Grown-up stem cells can separate into related cell types just, for instance, bone marrow cells can separate into platelets and cells of the immune system, yet no other cell types.

Stem cells in plants

Cell division in plants happens in areas called meristems. Cells of the meristem can separate to deliver a wide range of plant cells whenever during the existence of the plant.

The fundamental meristems are near the tip of the shoot, and the tip of the root. In a developing shoot, new cells are being delivered ceaselessly close to the tip. As the cells become more established, further away from the tip, they differentiate they grow and develop vacuoles.