Stem Cells Flashcards
What is a stem cell
An unspecialised cell, that can differentiate into many other cell types
Embryonic stem cells
unspecialised cells from embryos
Adult stem cells
Unspecialised cells from adult tissues e.g. bone marrow
Name two advantages of embryonic stem cells
Has the potential to develop into any type of cell/tissue.
Used to treat human diseases.
Painless
Name two advantages of adult stem cells
Plentiful supply
No ethical issues (in collection) as permission can be given
Well tried/tested
Name two disadvantages of embryonic stem cells
Unethical – embryos cannot give permission.
Possible harm/death to embryo.
Name two disadvantages of adult stem cells
Painful to extract
Fewer diseases can be treated
Can only form the type of cells as the tissue they were taken from.