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2. Goal: one cell creates two new identical cells identical cells 1.Interphase – period of rapid growth – all materials are doubling 2. Mitosis - nucleus of cell divides [4 stages] Prophase Metaphase Anaphase Telophase 3. Cytokinesis - cytoplasm divides

3. 1.Growth – allows organism to reach maturity 2. Replace worn out cells- every cell dies at some point 3. Repair damaged cells – allows damaged areas of organisms to be fixed Cells that do not go through cell cycle: Muscle & Nerve

4. Nuclear membrane Chromosome Cell membrane

5. * Cell Membrane, nuclear membrane, cytoplasm, and all organelles double * DNA doubles * DNA long, thin threads = chromatin *Cell needs to double all materials in order to be able make two new cells [ Increasing] Cell membrane Chromatin Nuclear membrane

6. *DNA shortens and coils- chromosomes appear *Centromeres appear [hold chromosomes together] *Spindle fibers appear *Centrioles appear [poles found in animal cells, will guide chromosome movement] * Nuclear membrane begins to disappear [Preparing] Centromere Nuclear membrane Centrioles Spindle fibers Chromosome

7. [Middle] * Chromosomes line up in center of cell and attach to spindle fibers * Spindle fibers attach to centrioles Centriole Spindle fiber Chromosome Centromere

8. * Centrioles tug on spindle fibers pulling chromosomes apart * Centromeres are lost [Apart] Chromosome Spindle fiber Centriole

9. *Two new nuclear membranes appear creating two new identical nuclei *Spindle fibers and centrioles disappear [Two new] Chromosome Nuclear membrane

10. * Cytokinesis = cytoplasm divides How? * Animals- cell membrane pinches * Plants- Cell plate grows from center inward of cell outward [cytoplasm divides] Cell membrane Nuclear membrane Cell Plate Chromosomes

11. * Two new cells identical to parent cell and each other * Each cell contains same number of chromosomes as parent cell Chromosome Nuclear membrane

12. Cell Growth DNA duplicates and cell grows Cytokinesis Interphase = 80% All Materials Double Nucleus Doubles Cytoplasm Divides

13. I Interphase P Prophase M Metaphase A Anaphase T Telophase C Cytokinesis D Daughter Cells I I Payed Money At The Car Dealership Car Dealership