Differentiation/Stem Cells

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

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Stem cells can be obtained from _________.

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

Stem cells are used to __________.

• make clones
• create new species of animals
• make babies
• grow different types of tissues

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Which of the following cells is UNdifferentiated or UNspecialized?

• cardiac muscle cell
• nerve cell
• liver cell
• stem cell

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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

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.

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Adult (tissue-specific) stem cells can also be referred to as ______________.

• somatic stem cells

• embryonic stem cells

• starter cells

• IPS cells

Stem cells are found in multiple locations in the body like skin, liver, muscles, intestines, and bones. True or False?

• True

• False

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A few days after fertilization, cells in the embryo begin to turn on and off particular genes in order to become particular cell types. This process is called...

• Differentiation / Specialization

• Homeostasis

• The cell cycle

• Mitosis

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Why are your muscle cells different from your nerve cells?

• muscle and nerve cells have different DNA, different genes

• muscle and nerve cells have the same DNA (same genes) but different genes are turned on

• muscle and nerve cells began with the same DNA (same genes) but some different genes were destroyed by each cell type

• muscle cells are not different from nerve cells, they are the same

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