Stem Cells (AQA GCSE Biology): Flashcards
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Stem cells
Stem cells
Undifferentiated cells that can divide or specialise
Pluripotent stem cells
Pluripotent stem cells
Can differentiate into any cell type in the body
Multipotent stem cells
Multipotent stem cells
Can form a limited range of cell types
Where embryonic stem cells form from
Where embryonic stem cells form from
Zygote (fused egg and sperm cell)
Type of stem cell that is pluripotent
Type of stem cell that is pluripotent
Embryonic stem cells
Embryonic stem cell use for diabetes
Embryonic stem cell use for diabetes
Replacing insulin-producing cells
Embryonic stem cell use for Alzheimer's
Embryonic stem cell use for Alzheimer's
Replacing damaged neurons
Where adult stem cells are found
Where adult stem cells are found
Various tissues, e.g., bone marrow
Medical use of adult stem cells
Medical use of adult stem cells
Bone marrow transplants for leukaemia
Location of meristematic stem cells in plants
Location of meristematic stem cells in plants
Meristems at tips of roots and shoots
Use of meristematic stem cells
Use of meristematic stem cells
Plant cloning to produce identical plants
Therapeutic cloning
Therapeutic cloning
Creating embryo with same genetic material as patient
Stage where embryonic stem cells are harvested
Stage where embryonic stem cells are harvested
Blastocyst stage
Benefit of therapeutic cloning
Benefit of therapeutic cloning
Minimises risk of rejection during transplantation
Challenge of embryonic stem cell use
Challenge of embryonic stem cell use
Embryo destruction raises ethical concerns