1. Learning Objectives:
Explain the problems that growth causes for cells. (B)
Describe the role of chromosomes in cell division. (B)
Name the main events of the cell cycle. (A)
Describe what happens during the main phases of mitosis & cytokinesis. (B)
Explain how cancer cells are different than other cells. (B)

2. Thursday (All)_ _ _ 12/07/17
Agenda:
Quiz
Begin Mitosis 
Turn in Review
Warm Up:
Check radishes, add to data table – can also add online today.
No Warm Up – Study your review
Learning Target(s) – What you should be able to do by the end of today:
Explain the problems that growth causes for cells. (B)
Describe the role of chromosomes in cell division. (B)
Name the main events of the cell cycle. (A)

3. Chapter 10
Cell Growth & Division

4. Mitosis Introduction (when you complete your test)
Read pages Answer the following questions. Be ready to create a diagram tomorrow.
What is the overall point of mitosis?
As simply as possible, explain what the chromosomes do from being free and uncoiled in the nucleus to free and uncoiled in the two new cells produced from mitosis.
Explain one positive outcome of cell reproduction.
Explain a negative outcome of cells replicating too quickly. Is there a real-life connection you can make from this example?

5. Friday (All)_ _ _ 12/08/17 Check radishes, add to data table.
Agenda:
Mitosis Notes #1
Surface Area: Volume Vizualization Lab
Warm Up:
Check radishes, add to data table.
How are new cells formed?
Learning Target(s) – What you should be able to do by the end of today:
Explain the problems that growth causes for cells. (B)
Describe the role of chromosomes in cell division. (B)
Name the main events of the cell cycle. (A)

6. Cell Growth, Division & Reproduction

7. Mitosis: The division of cell’s nucleus to form two new cells.

8. Why does a cell divide? If the cell is too large…
its DNA cannot meet all of the cell’s needs
Ex: library for a growing town
nutrients and wastes cannot be moved across the cell membrane well  surface area : volume ratio

9. Surface area : Volume
rate of exchange over the cell membrane depends on its’ surface area
rate at which food and oxygen are used and waste is produced depends on its’ volume
as a cell grows larger, its’ surface area : volume ratio gets SMALLER  waste will be produced faster (bigger volume), but it can’t be removed as quickly (smaller
surface area)
Sooo… The cell must divide!

10. Cell division
process by which a cell divides, forming two daughter cells
before dividing, each cell duplicates its DNA so that each daughter cell gets one copy

11. Monday (All)_ _ _ 12/11/17 Check radishes, add to data table.
Agenda:
Mitosis Notes #2
Warm Up:
Check radishes, add to data table.
How does a surface area to volume ratio relate to the cell’s need to multiply?
Learning Target(s) – What you should be able to do by the end of today:
Explain the problems that growth causes for cells. (B)
Describe the role of chromosomes in cell division. (B)
Name the main events of the cell cycle. (A)

12. The Process of Cell Division

13. Chromosomes Made of DNA & proteins. Carry the cells’ genetic info.
Every organism has a specific number of chromosomes
Bacteria = 1 circular chromosome in the cytoplasm
Humans = 46 chromosomes
Bananas have 99

14. Chromosomes (continued)
In eukaryotes, they are normally spread throughout the nucleus & aren’t visible (called chromatin).
In prokaryotes, they are everywhere in the cell – no nucleus. Cell clones itself.
Before cell division, each chromosome is replicated, forming 2 chromatids,
attached by a centromere.

15. The Prokaryotic Cell Cycle = Binary Fission (how bacteria divide)

16. The Eukaryotic Cell Cycle
During the cell cycle, the cell grows, prepares for division, and divides into 2 daughter cells, each of which begins the cycle again.
Phases:
G1: cell growth
S: DNA replication (copying) Interphase
G2: preparation for mitosis
M: mitosis (division of the
cell nucleus) & cytokinesis

17. Tuesday (A-Day)_ _ _ 12/12/17 Check radishes, add to data table.
Agenda:
Mitosis Notes #3
Warm Up:
Check radishes, add to data table.
What happens to DNA during cell division?
Learning Target(s) – What you should be able to do by the end of today:
Explain the problems that growth causes for cells. (B)
Describe the role of chromosomes in cell division. (B)
Name the main events of the cell cycle. (A)
Describe what happens during the main phases of mitosis & cytokinesis. (B)

18. Telophase/Cytokinesis
Mitosis
Interphase
Prophase
Metaphase
Anaphase
Telophase/Cytokinesis

19. Interphase Chromosomes are copied.
Chromosomes and copies appear as chromatin.

20. Prophase Chromosomes become visible.
Centrioles appear and move to opposite ends of cell.
Spindle fibers form.
Nuclear membrane
disappears.

21. Metaphase Chromosomes line up across center of cell.
Spindle fibers attach to centromeres.

22. Sister chromatids are pulled apart.
Anaphase
Sister chromatids are pulled apart.

23. Telophase/Cytokinesis
Chromosomes lose shape, appearing as chromatin.
Nuclear membranes reform.
Cytoplasm pinches in half (cytokinesis).
Clip1
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24. Wednesday (B-Day)_ _ 12/13/17
Agenda:
Mitosis Notes #3
Warm Up:
Check radishes, add to data table.
What happens to DNA during cell division?
Learning Target(s) – What you should be able to do by the end of today:
Name the main events of the cell cycle. (A)
Describe what happens during the main phases of mitosis & cytokinesis. (B)
Explain how cancer cells are different than other cells. (B)

25. Regulating the Cell Cycle

26. How long does cell division take?
Some cells (ex: muscle & nerve cells) do not divide all at once developed, while others (ex: skin & digestive tract cells) divide every few hours.

27. How is the cell cycle regulated?
Regulatory Proteins regulate the timing of the cell cycle
Both internal & external to the cell.
Most cells will stop growing when they come in contact with other cells.

28. Cancer uncontrolled cell growth Tumor: mass of cells formed
May be benign (nonspreading) or malignant (spreads to other tissue).

29. Friday (All)_ ________ 12/15/17
Agenda:
Online Lab
Warm Up:
Check radishes, add to data table. DONE TODAY TAKE IT HOME OR IT’S MINE 
What happens to DNA during cell division?
Learning Target(s) – What you should be able to do by the end of today:
Name the main events of the cell cycle. (A)
Describe what happens during the main phases of mitosis & cytokinesis. (B)
Explain how cancer cells are different than other cells. (B)