Stem cells
- Created by: Rebekah Allanah
- Created on: 02-05-13 08:48
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- Stem Cells
- Sources of stem cells
- Adult
- Bone Marrow
- Blood
- Embryonic
- Placenta
- Umbilical cord
- Blastocyst
- Adult
- Types
- Pluripotent
- A non specialized cell that has the ability to differentiate into most of the cells in the body
- Totipotent
- A non specialized cell that has the ability to differentiate into any of the cells in the body
- Multipotent
- A non specialized that has the ability to differentiate into some cells in the body that are related to the source of the multipotent cell
- Pluripotent
- Ethics
- Using embryonic stem cells - some people class it as life
- A regulatory authority is the UK Human Fertilization and Embryology Authority (HFEA)
- Core Practical
- Plant Tissue Culture - showing the totipotency of plant cells
- Germinate some seeds
- Prepare agar and pour a layer into sterilised pots
- Carefully cut just below the leaves
- Push gently into agar jelly
- Put cling film lid over pot
- Push gently into agar jelly
- Carefully cut just below the leaves
- Prepare agar and pour a layer into sterilised pots
- Germinate some seeds
- What to look for
- Growth of roots and/or the rest of the plant
- Plant Tissue Culture - showing the totipotency of plant cells
- Problems with using stem cells
- High chance of rejection, even with donors that are relatives
- Ethical issues and restrictions from governing bodies in concern with the use of embryonic stem cells
- Sources of stem cells
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