Cell Specialization Differentiation

Stem cells are

• cells that grow uncontrollably
• undifferentiated and can be any type of cell
• never go through cell division
• only found in embryos

Stem cells can be obtained from

• embryos

• some adult tissues

• umbilical cord blood

• all of the above

Which best explains why muscle cells are different from blood cells?

• Muscle cells are produced by the brain, but blood cells are produced by the heart. 
• Different genes are activated in muscle cells than in blood cells. 
• Muscles cells experience different environmental influences than blood cells. 
• A mutation occurs during the development of muscle cells but not in blood cells. 

What is the difference between embryonic stem cells and adult stem cells?

• Embryonic stem cells can differentiate into more cell types than adult stem cells
• Adult stem cells are pluripotent, just like embryonic stem cells
• Adult stem cells can differentiate into more cell types than embryonic stem cells
• Adult stem cells grow bigger than embryonic stem cells

Which is true about embryonic stem cells?

• They no longer divide, their cell type is set and cannot change.
• They can develop into only one type of cell.
• They can become any cell type in the body.
• They are found in adults.

What is cell differentiation?

• Process by which cells produce more cells
• Process by which cells become specialized
• Process by which cells become unspecialized
• Process by which cells die

What is one goal of cellular differentiation/specialization?

• To create specialized cells to help organism maintain homeostasis.
• To many cells.
• To make stem cells
• to make single celled organisms

Stem cells are

• cells that grow uncontrollably
• undifferentiated and can be any type of cell
• never go through cell division
• only found in embryos

Stem cell research is controversial because in involves?

• social issues
• ethical issues
• educational issues
• economical issues

Segment of DNA that determines what characteristics offspring will inherit from parents.

• DNA

• Chromosome

• Gene

• Nucleus