The document discusses the process of mitosis and how it differs between plants and animals. Mitosis is the process where the nucleus divides to form two new nuclei. In animals, mitosis involves the formation of centrioles and spindle fibers that pull sister chromatids apart. In plants, centrioles are not present and cell division involves plant-specific structures. The stages of mitosis - interphase, prophase, metaphase, anaphase, telophase, and cytokinesis - result in two daughter cells with identical chromosomes to the parent cell.

1. Asexual Reproduction
Mitosis
DSQ: Mitosis is the process in
which the nucleus divides to
form two new nuclei. How
does mitosis differ in plants and
animals?
Mrs. Camp
1
7th Grade Life Science 1

3. DSQ: Mitosis is the process in which the nucleus
divides to form two new nuclei. How does
mitosis differ in plants and animals?

4. DSQ: Mitosis is the process in which the nucleus
divides to form two new nuclei. How does
mitosis differ in plants and animals?

5. DSQ: Mitosis is the process in which the nucleus
divides to form two new nuclei. How does
mitosis differ in plants and animals?

6. DSQ: Mitosis is the process in which the nucleus
divides to form two new nuclei. How does
mitosis differ in plants and animals?

8. Asexual Reproduction
Mitosis
DSQ: Mitosis is the process in which the
nucleus divides to form two new nuclei.
How does mitosis differ in plants and
animals?
ANALYZE
(break apart, study the pieces)
There is a question within a question in this DSQ.
Can you identify the question within the DSQ?
8 8

9. How do little elephants grow up to be BIG
elephants?

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

12. Skin cancer - the abnormal growth of
skin cells - most often develops on skin
exposed to the sun.
Cell that reproduce by asexual
reproduction reproduce constantly.

13. Animated Mitosis Cycle
http://www.cellsalive.com/mitosis.htm
• Interphase
• Prophase
• Metaphase
• Anaphase
• Telophase & Cytokinesis

14. • Chromosomes are copied (# doubles)
• Chromosomes appear as threadlike coils
(chromatin) at the start, but each chromosome
and its copy(sister chromosome) change to sister
chromatids at end of this phase
CELL
Nucleus MEMBRANE
Cytoplasm

15. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

16. • Mitosis begins (cell begins to divide)
• Centrioles (or poles) appear and begin to
move to opposite end of the cell.
• Spindle fibers form between the poles.
Centrioles
Sister chromatids
Spindle fibers

17. Animal Cell Plant Cell
Spindle fibers
Centrioles
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

18. • Chromatids (or pairs of chromosomes) attach
to the spindle fibers.
Centrioles
Spindle fibers

19. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

20. • Chromatids (or pairs of chromosomes)
separate and begin to move to opposite
ends of the cell.
Centrioles
Spindle fibers

21. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

22. • Two new nuclei form.
• Chromosomes appear as chromatin (threads
rather than rods).
• Mitosis ends.
Nuclei Nuclei
Chromatin

23. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

24. • Cell membrane moves inward to create two
daughter cells – each with its own nucleus
with identical chromosomes.

25. Animal Mitosis -- Review
Interphase Prophase
Metaphase Anaphase
Telophase Interphase

26. Plant Mitosis -- Review
Interphase Prophase
Metaphase Anaphase
Telophase Interphase

27. Ø Interphas
e
Ø Prophase
IPMA
Ø Metaphas
e TC
Ø Anaphase
Ø Telophase
I Pray More At The
Ø Cytokinesi

28. 28

29. - Cell Division
29 29

30. http://www.cellsalive.com/mitosis.htm