Cell Division 10.2
Mitosis
• Part of eukaryotic cell division during
which the cell nucleus divides.
Cytokinesis
• Division of the cytoplasm during cell
division.
Chromatid
• One of two identical “sister” parts of a
duplicated chromosome.
Centromere
• Area where the chromatids of a
chromosome are attached.
Interphase
• Period of the cell cycle between cell
divisions.
Cell Cycle
• Series of events that cells go through as
they grow and divide.
Prophase
• First and longest phase of mitosis, during
which the chromosomes become visible
and the centrioles separate and...
Centriole
• One of two tiny structures located in the
cytoplasm of animal cells near the
nuclear envelope.
Spindle
• Fanlike microtubule structure that helps
separate the chromosomes during
mitosis.
Metaphase
• Second phase of mitosis, during which
the chromosomes line up across the
center of the cell.
Anaphase
• The third phase of mitosis, during which
the chromosome pairs separate and
move toward opposite poles.
Telophase
• Fourth and final phase of mitosis, during
which the chromosomes begin to
disperse into a tangle of dense mater...
Key Concept
• What are the main events of the cell
cycle?
–During the cell cycle, a cell grows,
prepares for division, and...
Key Concept
• What are the four phases of mitosis?
–Biologists divide the events of mitosis
into four phases: prophase,
me...
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Biology 10.2

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Biology 10.2

  1. 1. Cell Division 10.2
  2. 2. Mitosis • Part of eukaryotic cell division during which the cell nucleus divides.
  3. 3. Cytokinesis • Division of the cytoplasm during cell division.
  4. 4. Chromatid • One of two identical “sister” parts of a duplicated chromosome.
  5. 5. Centromere • Area where the chromatids of a chromosome are attached.
  6. 6. Interphase • Period of the cell cycle between cell divisions.
  7. 7. Cell Cycle • Series of events that cells go through as they grow and divide.
  8. 8. Prophase • First and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus.
  9. 9. Centriole • One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope.
  10. 10. Spindle • Fanlike microtubule structure that helps separate the chromosomes during mitosis.
  11. 11. Metaphase • Second phase of mitosis, during which the chromosomes line up across the center of the cell.
  12. 12. Anaphase • The third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles.
  13. 13. Telophase • Fourth and final phase of mitosis, during which the chromosomes begin to disperse into a tangle of dense material.
  14. 14. Key Concept • What are the main events of the cell cycle? –During the cell cycle, a cell grows, prepares for division, and divides to form two daughter cells, each of which then begins the cycle again.
  15. 15. Key Concept • What are the four phases of mitosis? –Biologists divide the events of mitosis into four phases: prophase, metaphase, anaphase, and telophase.

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