4.1.2 Mitosis and Stem Cells AQA

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

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What is a benefit of using the patient's own stem cells to treat cancer?

• Your own stem cells won’t cause rejection as they’re taken from the patient themselves

• Your own stem cells have to be extracted from the bone marrow which is very painful

• Adult stem cells can only differentiate into a few cell types

• There is a risk of cancer returning

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What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?

• genetic engineering
• survival of the fittest
• differentiation
• selective breeding

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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. 

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Stem cells can be obtained from _________.

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

Which stem cells can turn into the MOST types of cells?

• Embryonic

• Somatic

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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

Why is the use of embryonic stem cells controversial?

• The embryos are destroyed in the process of extracting the stem cells.

• People consider their use as destroying a life.

• They are taken from little kids, which is painful.

• They are put into a different person.