Chapter 3: Cells Part IV: The Cell Cycle Control of Cell Division Stem and Progenitor Cells.

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Presentation transcript:

Chapter 3: Cells Part IV: The Cell Cycle Control of Cell Division Stem and Progenitor Cells

The Cell Cycle Cell Cycle –1. –2.

Interphase Stages a. b. c. The Cell Cycle

Cell Cycle Mitosis

Cell Cycle Prophase 1. 2

Cell Cycle Metaphase 1. 2.

Cell Cycle Anaphase

Cell Cycle Telophase 1. 2.

Cell Cycle Cytoplasmic Division (cytokinesis)

Control of Cell Division Cells divide at different rates Cells in humans

Control of Cell Division Telomeres # of divisions of a cell 1. 2.

Control of Cell Division Other factors also control cell division: 1.Size of cell 2. Hormones and Growth factors 3. Space availability

Control of Cell Division Tumors: Two types a. b.

Control of Cell Division Cancer: Metastasis

Control of Cell Division Characteristics of cancer cells –Pg. 105 Table 3.6 Treatment

Control of Cell Division Genes and Cancer: 1.Oncogenes 2. Tumor suppressor genes Environmental factors 1. 2.

Stem Cells and Progenitor Cells Cells come from other preexisting cells. Stem cells Progenitor cells

Stem cells and progenitor cells Totipotent pluripotent

Stem and Progenitor Cells All cells have –Exception: Each cell type follows See Figure 3.42 on pg. 108

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