Stem Cells Flashcards
When did every cell in the human body originate
When the sperm and egg cell united
Amount of types of cells in body
200+
Function of stem cells
Produce specialized cells or regenerate themselves. As a result, stem cells are appealing for scientists for experiments
Embryonic Stem Cells
Totipotent (become any one of an organism’s body cells). Derived from early stage in human development
Adult stem cells
Specialized. Found in developed humans (babies to adults)
Best to worst type of stem cells
Embryonic—> Umbilical Cord —> Adult
Attributes and limitations of Embryonic stem cells
Attribute: Totipotent
Limitation: Ethical dilemma (destroying blastocysts)
Attributes and limitations of Adult stem cells
Attribute: Genetically matched to patient
Limitation: Not found in all tissues
Attributes and limitations of Umbilical cord stem cells
Attribute: Leukemia
Limitation: Expensive
Umbilical Cord Stem Cells
Stem Cells found in umbilical cord and placenta (Give various types of blood cells)
Pluripotent stem cell
Unspecialized cell that can develop into many (but not all) of an organism’s types of body cells
Stem cells
Unspecialized cells that can produce various specialized cells