Cell Basics (1.1)
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Notes on Cell Basics, Stem Cells and Origins of Cells (Topic 1.1, 1.2, 1.5)Topic 1- Jeopardy ReviewSee 1.2 for microscopes, calculations and drawings
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Functions of Life
This list of characteritiscs of life is not conclusive. There was at one time over 200 different definitions of life. The following 7 characteritics are generally considered accurate although some lists may contain more or less than this list.
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Life and Single Celled Organisms
How do we know a single celled organisms is alive?
- We need to be able to demonstrate that these organisms perform the 7 functions of life listed above.
- See document below for a studnet assignment looking at how each organism demonstrates these functions.
Cell Theory
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The cell theory attempts to explain life through the existence of cells. It states:
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Exceptions to the Cell Theory
There are a few exceptions to the above cell theory:
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Cell Differentiation
Differentiation- different cells perform different functions
Development of an Embryo Steam Cells and the human body |
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Stem Cell Overview
Stem Cells: an undifferentiated cell capable of dividing, from which other cells become differentiated.
3 Types of stem cells:
New Scientist Stem Cells Exploring Stem Cell Videos Explore stem Cell Website |
Types of Stem Cells
1.Embryonic Stem Cells (Pluripotent)
2. Umbilical Cord Stem Cells (Multipotent)
3. Adult Stem Cells (Multipotent)
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Stem Cell Therapies
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2 key properties make stem cells one of the hottest topics in Biology and Medicine
Stem Cell possibilities |
Stargardt’s Macular Dystrophy |
Leukemia |
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Stem Cell Ethics Debate
For years scientists, non-scientists, religious and non-religious communities, and bioethics committees have debated the ethics of stem cells.
Embryonic Stem Cell Research (Eurostem cells) What's the Big Deal? Ethics of Stem Cell Research (Stanford) Is the Debate over? (Utah Genetics) |