5211 Stem Cells

Stem cells can be obtained from _________.

• embryos
• some adult tissues
• umbilical cord blood
• all of the above

Why might stem cell research lead to a cure for diabetes?

• Stem cells can be used to grow pancreas cells that produce insulin.
• Stem cells can create babies that have normal functioning pancreases.

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. 

Medical research involving stem cells is important for ...

• to test the effectiveness of new drugs

• the generation of cells and tissues that can be used in cell based therapies

• to understand the consequences of turning genes off and on

• All of the above

How might stem cells be used to help people recover from diseases and disorders?

• By repairing damaged tissues

• By destroying harmful viruses and bacteria

• By strengthening the body's immune system

• By destroying infected tissues

What is cell differentiation?

• The process where unspecialized cells become different in structure and function.

• When DNA controls the cell cycle.

• The ability of cells to make more cells.

• The ability of cells to maintain homeostasis.

As cells become more specialized

• cells have access to more genes

• some genes are turned off

• some gene segments get lost

Stem cells are ____________________.

• cells that grow uncontrollably

• undifferentiated cells that can turn into other types of cells

• the first cells of a new living organism (fertilized egg)

• specialized cells that do one job

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

• Embryonic can differentiate into more cell types than adult
• Adult only turn into blood, while embryonic turn into many things.
• Adult can differentiate into more cell types than embryonic
• Adult grow bigger than embryonic

What is true of induced pluripotent stem cells?

• They can be turned/forced into other types of cells in a lab.

• They can't be turned into other types of cells.

• They can be turned back into their original type of cell.

• None of the above