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Title:

Cell Differentiation

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10.4 Cell Differentiation Differentiation cells become different; form into many types of cells Become specialized for certain tasks Stem Cells = Unspecialized ... – PowerPoint PPT presentation

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Title: Cell Differentiation


1
10.4
  • Cell Differentiation

2
  • Differentiation cells become different form
    into many types of cells
  • Become specialized for certain tasks

3
Stem Cells
  • Unspecialized cells from which other cells
    develop
  • Totipotent can develop into any kind of cell in
    body (ex. First fertilized cells)
  • Blastocyst hollow ball of cells early embryo
  • Pluripotent inside blastocyst can develop into
    most types of cells (not the tissue around
    embryo)

4
Types
  • Embryonic stem cells research shows can form
    into any cell type in human body
  • Adult stem cells pools to replenish
    damaged/dead cells
  • Are multipotent ? typically develop into
    cells from the type of tissue they originated
  • Ex. Bone marrow transplants stem cell
    transplants for blood

5
  • Adult cells altered to have properties of
    embryonic stem cells induced pluripotent stem
    cells still unknown effects in humans
  • Amniotic fluid stem cells need more research

6
Stem Cell Research
  • Benefits replace injured cells/tissues
  • Ex. Heart cells, brain cells, nerve cells
  • Ethics
  • Adult stem cells fine
  • Embryonic stem cells destroys embryo
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