Stem Cells
- Created by: Ashly.Shagee
- Created on: 27-03-15 09:23
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- Stem Cells
- Unspecialised cells that can develop into other types of cell.
- They divide to become new cells which then become specialised.
- Found in the :
- Embryo: where they become all the specialised cells needed to form a fetus.
- Some adult tissues: where they become specialised cells that need to be replaced.
- E.g stem cells in the bone marrow can become red blood cells.
- Stem cells that can mature into any type of body cell are called totipotent cells.
- In humans they are only present in the early life of an embryo.
- Beyond this the embryonic stem cells lose their ability to specialise into all types of cells.
- In humans they are only present in the early life of an embryo.
- Few that remain in mature animals are called multipotent stem cells.
- These can only develop into a few types of cells.
- In plants they are found in areas where the plant is growing.
- Roots & Shoots.
- All stem cells are totipotent in plants.
- Can be used to grow plant organs/ whole new plants in vitro.
- Untitled
- Can be used to grow plant organs/ whole new plants in vitro.
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