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Cell Division The differences between plant and animal cells 1.

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Presentation on theme: "Cell Division The differences between plant and animal cells 1."— Presentation transcript:

1 Cell Division The differences between plant and animal cells 1

2 Interphase occurs before mitosis begins
Chromosomes are copied (# doubles) All organelles and cytoplasm double Chromosomes appear as long thin threadlike coils (chromatin) Cell Membrane Nucleus Cytoplasm

3 Interphase Plant Cell Animal Cell
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4 Prophase 1st step in Mitosis
Centrioles (or poles) appear Spindle fibers form near centrioles. Centromeres appear, hold chromosomes together Nuclear membrane begins to disappear Centrioles Chromosomes Centromere Spindle fibers

5 Prophase Plant Cell Animal Cell Spindle fibers
Photographs from:

6 Metaphase 2nd step in Mitosis
Chromosomes attach to the spindle fibers. Chromosomes line up in center of cell Chromosomes Centromere Centrioles Spindle fibers

7 Metaphase Plant Cell Animal Cell
Photographs from:

8 Anaphase 3rd step in Mitosis
Centrioles tug on spindle fibers Chromosomes separate and begin to move to opposite ends of the cell. Centromeres disappear Centrioles Spindle fibers

9 Anaphase Plant Cell Animal Cell
Photographs from:

10 Telophase 4th step in Mitosis
Two new nuclei form. Spindle fibers and centrioles disappear. Mitosis ends. Nuclear membrane Nuclear membrane Chromosomes Chromosomes

11 Cytokinesis occurs after mitosis
Cytoplasm Divides Animal Cell - Cell membrane moves inward Plant Cell – Cell plate moves outward Animal Plant

12 Telophase Plant Cell Animal Cell
Photographs from:

13 Animal Cell Division- Review
Interphase                                                              Prophase                                                              Metaphase                                                              Anaphase                                                              Telophase                                                              Cytokinesis                                                             

14 Plant Cell Division- Review
Interphase                                                              Prophase                                                              Metaphase                                                              Anaphase                                                              Telophase                                                              Cytokinesis                                                             

15 Growth- needed so organisms can Repair- injured tissues
Three reasons why cells reproduce asexually: Growth- needed so organisms can develop Repair- injured tissues Replace – worn out cells

16 What type of cells never leave interphase?
Muscle Nerve

17 Skin cancer - the abnormal growth of skin cells - most often develops on skin exposed to the sun.
How does it develop?? Cells that reproduce by asexual reproduction reproduce constantly.

18 IPMATCD REMEMBER! I Payed Money At The Car Dealership Interphase
Prophase Metaphase Anaphase Telophase Cytokinesis Daughter Cells IPMATCD A mnemonic to help remember the stages of mitosis. I Payed Money At The Car Dealership

19 Cell Cycle

20 - Cell Division The Cell Cycle 20

21 Mitosis Animation

22 How do little elephants grow up to be BIG elephants?

23 Why do animals shed their skin?

24 The process of asexual reproduction begins after a sperm fertilizes an egg.

25 Animated Mitosis Cycle
Interphase Prophase Metaphase Anaphase Telophase Cytokinesis


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