| Cancer | Differentiation | Stem cells & Development | Regulatory proteins | Mitosis |
|---|---|---|---|---|
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What is cancer?
Uncontrolled cell growth
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What is differentiation?
Process in which cells become specialized in structure & function
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What is totipotent?
Cells that are able to develop into any type of cell found in the body.
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What is a cylin?
One of a family of proteins that regulates the cell cycle in eukaryotic cells.
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What are the stages of mitosis in order?
Prophase, metaphase, anaphasem telaphase.
|
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What are some main causes of cancer?
Smoking, chewing tobacco, radiation exposure & viral infection
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What does the process of differentiation determine?
A cells ultimate identity.
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What makes a fertilized egg truly totipotent?
Only the fertilized egg & the cells produced by the first few cells divisions of embryonic development.
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What is the cell cycle controlled by?
Regulatory proteins both inside and outside the cell
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Prophase
|
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What do all cancers have in common?
The control over the cell cycle has broken down
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What do daughter cells from each cell division follow?
Specific path toward a role as a particular kind of cell
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What happens after about 4 days of development during human development?
Human embryo forms in blastocyst.
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Another regulatory protein prevents a cell from ______ until the spindle fibers have attached to the chromosomes.
Anaphase
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What is
Anaphase
|
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What makes cancer cells dangerous?
Their tendency to spread once entered through bloodstream
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What is the controlling factor in cell differentiation for mammals?
A number of interacting factors in the embryo
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What can cells that are pluripotent not do?
They cannot form the tissues surrounding the embryo
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Proteins that respond to the events outside the cell are called _________.
External regulatory proteins
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What is
Metaphase
|
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What do damaged or defective p53 genes cause?
Cells to lose the info needed to respond to signals that control their growth
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What do our bodies and the loadies of all multicellular organisms contain?
Highly differentiated cells that carry out the jobs we need to stay alive.
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What are the unspecialized cells from which differentiated cells develop known as?
Stem cells
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What is the opposite effect of external regulatory proteins?
They cause cells to slow down or stop their cell cycles.
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What is
Telophase
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