Stem Cells

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  • Created by: Lotto65
  • Created on: 23-12-15 16:17
What are stem cells?
Unspecialised cells
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Where are stem cells found?
Adult bone marrow; human embryo
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What is the cell called when an egg and sperm cell initially fuse?
Zygote
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Is a zygote a cell or group of cells?
Cell
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Where are stem cells found in an embryo?
When a zygote divides many times by mitosis to form a ball of cells, the inner layers of the ball are embryonic stem cells
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What is differentiation?
When stem cells specialise into all types of body cell for different functions
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Give some examples of differentiated cells?
Nerve cells, bone cells, muscle cells etc.
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Can adult stem cells differentiate?
Yes
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What is the hope for the future with stem cells?
Make them differentiate into specific cells to cure diseases like paralysis by producing nerve cells
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What is therapeutic cloning?
The area of research into taking an adult nucleus and putting it into an egg to produce tissues and organs for medecine
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What has therapeutic cloning been successful in producing so far?
Trachea
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When do animal cells differentiate?
Early development
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What replaces cells that cannot differentiate?
Adult stem cells
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When do plant cells differentiate?
Throughout their whole life as they continue to grow
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What are meristems?
Actively dividing plant tissues
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Other cards in this set

Card 2

Front

Where are stem cells found?

Back

Adult bone marrow; human embryo

Card 3

Front

What is the cell called when an egg and sperm cell initially fuse?

Back

Preview of the front of card 3

Card 4

Front

Is a zygote a cell or group of cells?

Back

Preview of the front of card 4

Card 5

Front

Where are stem cells found in an embryo?

Back

Preview of the front of card 5
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