1. 10-2 Cell Division

2. Chromosomes Chromosomes – Made up of DNA (carries genetic material)
Must be copied before cells can divide
Before cell division chromosomes become visible. Consists of two identical sister chromatids (copied chromosomes)
chromosome
3. Sister chromatids

3. Mitosis – Dividing of Cell Nucleus
Mitosis Cell Division – division of cell
Prophase Interphase
Metaphase Prophase
Anaphase Metaphase
Telophase Anaphase
5. Telophase
6. Cytokinesis
Key terms:
Centrioles - structures that make spindle fibers
Spindle fibers – structure responsible for separating chromatids

4. Interphase
Chromosomes not visible

5. Prophase Spindle fibers Prophase (key events)
Chromosomes become visible
Nucleus begins to disappear
Spindle fibers are formed from
centrioles
centrioles

6. Metaphase
Metaphase
The chromosomes line up across the center of the cell (moving along spindle fibers)

7. Anaphase
Anaphase
Chromosomes pulled apart (sister chromatids) until they form two groups near the “poles” of the spindle

8. Telophase
Telophase
The nucleus begins to reform around each cluster of chromosomes
Cytokinesis – Division of cytoplasm.
Cell membrane or Cell plate is formed in between nuclei

9. Mitosis and Cytokinesis
Spindle forming
Centrioles
Chromatin
Centromere
Nuclear envelope
Centriole
Chromosomes (paired chromatids)
Interphase
Prophase
Spindle
Cytokinesis
Centriole
Metaphase
Telophase
Individual chromosomes
Anaphase
Nuclear envelope reforming
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10. Mitosis and Cytokinesis
Spindle forming
Centrioles
Chromatin
Centromere
Nuclear envelope
Centriole
Chromosomes (paired chromatids)
Interphase
Prophase
Spindle
Cytokinesis
Centriole
Metaphase
Telophase
Individual chromosomes
Anaphase
Nuclear envelope reforming
Go to Section:

11. Mitosis and Cytokinesis
Spindle forming
Centrioles
Chromatin
Centromere
Nuclear envelope
Centriole
Chromosomes (paired chromatids)
Interphase
Prophase
Spindle
Cytokinesis
Centriole
Metaphase
Telophase
Individual chromosomes
Anaphase
Nuclear envelope reforming
Go to Section:

12. Mitosis and Cytokinesis
Spindle forming
Centrioles
Chromatin
Centromere
Nuclear envelope
Centriole
Chromosomes (paired chromatids)
Interphase
Prophase
Spindle
Cytokinesis
Centriole
Metaphase
Telophase
Individual chromosomes
Anaphase
Nuclear envelope reforming
Go to Section:

13. Mitosis and Cytokinesis
Spindle forming
Centrioles
Chromatin
Centromere
Nuclear envelope
Centriole
Chromosomes (paired chromatids)
Interphase
Prophase
Spindle
Cytokinesis
Centriole
Metaphase
Telophase
Individual chromosomes
Anaphase
Nuclear envelope reforming
Go to Section:

14. Mitosis and Cytokinesis
Spindle forming
Centrioles
Chromatin
Centromere
Nuclear envelope
Centriole
Chromosomes (paired chromatids)
Interphase
Prophase
Spindle
Cytokinesis
Centriole
Metaphase
Telophase
Individual chromosomes
Anaphase
Nuclear envelope reforming
Go to Section:

15. Onion Root Tip