Stem Cells. Learning Objectives SWBAT: Identify stem cells as ‘undifferentiated’ masses of cells. Explain how stem cells can become ‘specialized’ in a.

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Presentation transcript:

Stem Cells

Learning Objectives SWBAT: Identify stem cells as ‘undifferentiated’ masses of cells. Explain how stem cells can become ‘specialized’ in a particular function as they ‘differentiate’ and the differentiation depends on the signals they receive. Identify the different types of stem cells and describe their capability to produce different cell types Apply different types of stem cell therapies and their challenges. Theme: Structure meets function

Bone Marrow Transplant as treatment for leukemia or other forms of blood cancer

Bone Marrow

A life story…

Not specialized yet to perform a specific function -has not undergone Differentiation. What is a stem cell?

Stem Cells Can form many cell types through differentiation. Receive Signals Activate specific genes

Functions of Stem cells stem cell SELF-RENEWAL (copying) specialized cell e.g. muscle cell, nerve cell DIFFERENTIATION (specializing) Maintains the stem cell pool Replaces dead or damaged cells throughout your life

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