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15 Cards in this Set
- Front
- Back
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an embryo consisting of a few cells
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stem cells
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how do cells differentiate
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by turning some genes on and off in different cells and different proteins are made
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cell specialization leads to ..... variation
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structural
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the development of specific and distinctive features in cells is called
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cell differentiation
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programmed cell death
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apoptosis
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why commit cellular suicide
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got stressed out cells, uneeded, excessive or aged
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when cells undergo death, do they leak their content to other cells
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no
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during young adulthood cell numbers vary often
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F, remain fairly consistent
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accelerated growth
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hyperplasia
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most problems associated with old age is caused by
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cell aging
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a sure way to kill a cell is by depriving it of
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oxygen
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what is the wear and tear theory
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aging is caused by less oxygen getting to our cells and therefore dying, also toxins and free radical damage
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what are the other theories of aging
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autoimmune system gets bad and therefore cant destroy what can destroy cells, and the genetic theory, whole idea with the telomeres
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strings of nucleoties that cap the end of chromosmoes
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telomeres
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everytime the cell divide what gets shorter
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the telomere
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