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19 Cards in this Set
- Front
- Back
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the larger the cell, the more demands the cell places on the DNA and the more trouble it has moving nutrients/wastes across the cell membrane
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cell division
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process in which a cell divides into two daughter cells
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mitosis
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1st stage of cell division: division of a cells nucleus
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cytokinesis
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2nd stage of cell division: division of the cytoplasm
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chromatid
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one of two indentical "sister" parts of a duplicated chromosome
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centromeres
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area where the chromatidsof a chromosome are attached
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interphase
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peroid in between cell divisions: 80-90% of a cells life
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the cell cycle
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series of events that cells go through as they grow/divide
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during the cell cycle, a cell grows, prepares fro division, divides into two cells, and each of those starts the cycle over again
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G1 phase
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period were cells grow; increase size and synthesize proteins
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S phase
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chromosomes are replicated; DNA and key proteins for chromosomes are synthesized
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G2 phase
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shortest of three phases of interphase; organelles for cell division are produced
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Biologists divide the events of mitosis into 4 phases: prophase, metaphase, anaphase, and telephase
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prophase
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1st step of mitosis; longest step of mitosis
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centrioles
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two tiny structres near the nuclear envelope
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spindle
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fanlike microtubule structure that helps separate chromosomes
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metaphase
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2nd step of mitosis
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anaphase
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3rd step of mitosis
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telophase
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4th and final stage of mitosis
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