1. Cell cycle and mitosis notes Introduction video: http://www. youtube

2. Cell Growth
Does an animal get larger because each cell increases in size or because it produces more of them?

3. Cell Growth
As you might have guessed, living things grow by producing more cells.
The koalas have the same size cells, just one has more then the other.

4. Limits to Cell growth
The larger a cell becomes, the more demands the cell places on its DNA. In addition, the cell has more trouble moving enough nutrients and wastes across the cell membrane.
The cell can’t grow. It must reproduce!

5. How does the cell cycle work?
Label the cell cycle from this video:
hill.com/sites/ /student_view0/cha pter10/how_the_cell_cycle_works.html

6. Answer the following questions in your notes…
1. Which of the following represents the correct order of the phases of the cell cycle? A) G1 -> G2 -> S -> M
B) G1 -> G2 -> M -> S
C) G1 -> S -> G2 -> M
D) G1 -> S -> M -> G2
E) G1 -> M -> G2 -> S

7. 2. The division of the cytoplasm is called
A) synapsis.
B) mitosis.
C) meiosis.
D) cytokinesis.
E) cytogenetics.

8. 3. Which of the following represents the correct order of the phases of mitosis?
A) prophase -> anaphase -> metaphase -> telophase
B) prophase -> metaphase -> anaphase -> telophase
C) prophase -> metaphase -> telophase -> anaphase
D) metaphase -> prophase -> telophase -> anaphase
E) metaphase -> prophase -> anaphase -> telophase

9. 4. DNA replication occurs in mitosis.
A) True
B) False
5. Mitosis and cytoplasmic division result in the formation of two genetically identical cells.

10. We will do this cell cycle online activity together.
You will fill in the blanks in your notes as we go along…
END OF CELL CYCLE PART OF NOTES

11. Now that you know what the cell cycle is and how it works, let’s look more into one step of it called Mitosis!

12. Mitosis We have 46 chromosomes (23 pairs)
Mitosis is the cell division of the NUCLEUS. We have chromosomes inside the nucleus.
Chromosomes
Made of DNA (chromatin)
Found in the nucleus
Number depends on the organism
We have 46 chromosomes (23 pairs)

14. There are 4 phases in Mitosis, and 2 extra phases that are not considered a part of mitosis (as we saw in the cell cycle)...

15. I P on a MAT C http://www.cellsalive.com/mitosis.htm
*Interphase: preparation between split
MITOSIS:
Prophase
Metaphase
Anaphase
Telophase
*Cytokinesis: cells split

16. Mitosis produces identical offspring (2N---2N)

17. Let’s watch this video again, but this time you’ll fill in the information about MITOSIS! Draw pictures!
hill.com/sites/ /student_view0/cha pter10/how_the_cell_cycle_works.html

18. Use your hands to memorize the steps!
I’ll show you!

19. The following slides summarize the video we just watched…we will go through them quickly.

20. interphase DNA replicates (copies).
Chromatin coils and become chromosomes.

21. interphase Plant Cell Animal Cell
Photographs from:

22. Prophase 1st stage of mitosis
Longest stage
Nuclear membrane dissolves.
Centrioles (or poles) appear and move to opposite end of the cell.
Spindle fibers form between the poles.

23. Prophase Plant Cell Animal Cell Spindle fibers Centrioles
Photographs from:

24. Metaphase 2nd step in mitosis
Chromosomes line up SINGLE file along the equator.

25. Metaphase Animal Cell Plant Cell
Photographs from:

26. Anaphase 3rd step in mitosis
Chromatids separate and are pulled towards the poles

27. Anaphase Animal Cell Plant Cell
Photographs from:

28. Telophase 4th step in mitosis
Nuclear membrane reforms
Spindle disappears
Cytokinesis begins

29. Telophase Plant Cell Animal Cell
Photographs from:

30. http://highered. mcgraw-hill
cytokinesis
the division of the cytoplasm to make two complete daughter cells

31. Taks questions
If a cat has 38 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?
F 11
G 19
H 38
J 76

32. Taks questions
The diagram shows cell division in which an error has occurred. Which of these statements is most accurate?
A Cell A lacks the cytoplasm necessary to continue normal cell functions.
B Cell B contains enough genetic material for the cell to reproduce itself.
C Cell A is free of any mutation present in the genetic material of the parent cell.
D Cell B lacks instructions for making the proteins necessary for cell metabolism.

33. Here’s a rap that can help you with Mitosis!
6WT0&playnext_from=TL&videos=RWQGWi cDQog

34. What stage is this?
ANAPHASE!

35. What stage is this?
METAPHASE!

36. What stage is this?
ANAPHASE!

37. What stage is this?
PROPHASE!