Mitosis

1
Mitosis
Cell Division LT Side Two Frame
8398 http//www.johnkyrk.com/mitosis.html
2
Interphase (G1, S, G2)

• The time the cell is not dividing
• The DNA is not visible (chromatin)
• Label cell membrane, nuclear membrane,
  chromatin, nucleolus

3
Prophase

• Chromosomes become visible
• Nuclear membrane disappears
• Centriole (animal cells) migrate to the poles
• Astral rays form
• Label chromosome, chromatid, aster/pole, nuclear
  envelope

4
Metaphase

• Chromosomes line up at the equator
• The spindle forms completely
• Spindle fibers are microtubules
• An aster is at the pole
• Spindle fibers are attached to the centromeres
• The centromere divides
• Add labels to the diagram

5
Anaphase

• The movement to the poles
• The chromatids move to the poles
• The (new) chromosome moves to the pole
• Label pole, aster, chromatid, chromosome
• (there are two labels for each)

6
Telophase

• The cell reorganizes itself
• Label cell membrane, nuclear membrane, nucleolus

7
Cytokenesis

• The division of the cytoplasm
• Animals pinches inward using microtubules
• Plants vesicles will fuse to reform the cell
  wall with a cell membrane on two sides

8
Mitosis - Xeroxby George Zhang

• 1. Prophase
• 2.Metaphase
• 3. Anaphase
• 4. Telophase
• 5. Interphase
• 6. Interphase
• 7. Telophase

• 8. Prophase
• 9. Metaphase/Anaphase
• 10. Anaphase
• 11. Telophase
• 12. Prophase!!!
• 13. All of the Above

9
Mitosis - Xeroxby George Zhang

• 1. j
• 2. I
• 3. h
• 4. a
• 5. c
• 6. b
• 7. e

• 8. d
• 9. f
• 10.g
• 11. F (not)
• 12. T
• 13. F (interphase)

10
Mitosis - Xeroxby George Zhang

• 14.T
• 15 F (cytokinesis)
• 16 T
• 17. 3
• 18. 1
• 19. 4
• 20. 2

11
Credits
Edited By
Ethan Kahn
Developed By George Zhang
Colored by
Alana Casner
12
Visuals on The Internet
http//www.biology.arizona.edu/cell_bio/tutorials/
cell_cycle/main.html
http//faculty.nl.edu/jste/mitosis.htmMitosis
http//www.bioweb.uncc.edu/biol1110/Stages.htm
http//www.cellsalive.com/mitosis.htm
Alana Casner
13
Interphase

• The period between cell division.
• DNA replicates during S (synthesis)
• Cell growth occurs during G1 and G2
• Labelcell membrane, chromatin, nuclear membrane,
  nucleolus

14
Prophase

• The beginning of mitosis
• The nuclear membrane disappears
• Chromosomes appear
• Label nuclear membrane, chromosome, chromatid,
  microtubule organizing center

15
Metaphase

• Chromosomes lineup at the equator
• A microtubule seems to be attached to each
  centromere
• Label chromosome, microtubule, aster (pole)

16
Metaphase (cont.)

• At the end of metaphase the centromere divides

17
Anaphase

• Each chromatid moves to opposite poles.
• Label chromatid

18
Telophase

• A new nuclear membrane forms
• The cell membrane folds inward
• The chromosomes disappear
• Chromatin reappears
• New nucleoi form
• Two daughter cells result
• Label cell membrane

19
Cytokinesis occurs during Telophase

• The division of the cytoplasm
• Animals cell membrane pinches inward
• Plants cell plate forms