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Mitosis: Cell Division PowerPoint PPT Presentation


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Mitosis: Cell Division. Cell Division - process by which a cell splits into two identical daughter cells Occurs in two main phase: . Interphase – cell copies DNA and prepares for division Mitosis – chromosomes separate into two new cells. What are chromosomes?.

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Mitosis: Cell Division

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Mitosis: Cell Division


Cell Division - process by which a cell splits into two identical daughter cells

Occurs in two main phase: 

Interphase – cell copies DNA and prepares for division

Mitosis – chromosomes separate into two new cells


What are chromosomes?

  • DNA containing cell’s genetic code

  • Each chromosome has a matching pair (homologous)

  • During interphase, each chromosome copies itself


Life Cycle of the Cell

  • Mitosis = nuclear division

  • Mitosis is followed by cytokinesis (cell division)

  • The steps of mitosis ensure that each new cell has the exact same number of chromosomes as the original

  • Interphase = growth phase, differentiation occurs


The Cell Cycle

Interphase  (longest phase)

G1 - first growth (gap) phase

Synthesis - DNA makes a copy

G2 - second growth (gap) phase, preparing for mitosis

Mitosis - nucleus divides, ensuring each new cell has the exact number of chromosomes as parent


  • Interphase • Prophase • Metaphase • Anaphase • Telophase

  • IPMAT


1. chromosomes visible (chromatids)

2. centrioles migrate to the poles

3. nuclear membrane disappears

4. nucleolus disappears

5. spindle forms


1. chromosomes line up on the equator, spindle attaches


1. chromatids separate and move to opposite poles


1. chromosomes disappear • chromatin

2. nuclear membrane reforms

3. nucleoli reappears

4. spindle disappears

5. centrioles duplicate


- division of the cytoplasm to form 2 new daughter cells

- organelles are divided

- daughter cells are genetically identical

Cells return to interphase


  • Name the phases starting at the top.


  • Name the phase

  • Identify X

  • Identify Y


5. Name the phase


6. Name the phase


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