The Cell Cycle: How Eukaryotic Cells Divide

The cell cycle is the process in which eukaryotic cells divide to produce two daughter cells. This process is necessary for growth and repair of tissue. There are three stages: interphase, mitosis, and cytokinesis.

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About The Cell Cycle: How Eukaryotic Cells Divide

PowerPoint presentation about 'The Cell Cycle: How Eukaryotic Cells Divide'. This presentation describes the topic on The cell cycle is the process in which eukaryotic cells divide to produce two daughter cells. This process is necessary for growth and repair of tissue. There are three stages: interphase, mitosis, and cytokinesis.. The key topics included in this slideshow are cell cycle, eukaryotic cells, mitosis, cytokinesis, interphase,. Download this presentation absolutely free.

Presentation Transcript

1. The Cell Cycle 5A How eukaryotic cells divide to make new cells

2. Just like people have phases of development,

3. Cells have phases too.

4. In somatic (body) cells, a parent cell produces 2 daughter cells. The purpose of mitosis is for growth and repair of tissue.

5. Three Phases or Stages 1. Interphase 2. M (Mitosis) phase 3. Cytokinesis

6. Interphase

7. Interphase DNA and organelles replicate Cell spends most of its life in this stage

9. Stages of Interphase G1 (growth) S (synthesis) G2 (growth)

10. G1 (growth) Aka First Gap The cell grow larger Makes proteins and organelles

11. S (synthesis) DNA replication occurs - genetic material is duplicated so each daughter cell contains the same amount of genetic material as the parent cell Chromosomes duplicate to form sister chromatids

14. G2 (growth) Aka Second Gap More growth & protein synthesis occurs preparing for cell division

16. M phase Aka Mitosis Shortest of all phases Division of the nucleus

17. Mitosis Nucleus divides Duplicated DNA is divided into two new nuclei

19. Mitosis Animation

20. Stages of Mitosis Prophase Metaphase Anaphase Telophase

21. Prophase

22. Prophase Nuclear membrane breaks down Genetic material (chromosomes) enlarges, thickens &condenses In the cytoplasm, Centrioles migrate to opposite ends of poles Microtubules attach to centrioles

23. Prophase

24. Metaphase

25. Metaphase Duplicated chromosomes line up on the equator of the cell Spindles attach to chromosomes at the centromere & pull the sister chromatids into a line in the center of the cell

26. Metaphase

27. Anaphase

28. Anaphase Shortest phase As the spindle contracts, the sister chromatids separate and are pulled to opposite sides of the cell

29. Anaphase

30. Telophase

31. Telophase New nuclear membranes form to separate the genetic material Chromosomes shrink Spindle breaks apart

32. Telophase

33. Mitosis

34. Cytokinesis

35. Cytokinesis Occurs AFTER telophase and BEFORE interphase Cytoplasm divides Forms 2 new cells

36. Cytokinesis

39. http://outreach.mcb.harvard.ed u/animations/ cellcycle.swf