1. CYCLE CELL GROW DIVIDE CYTOKINESIS INTERPHASE G1 G2 S-PHASE DNA
Copy the passage into the left page of your notes from yesterday. Fill in the blanks using the word bank below: You may use your notes
The _____________ _____________ is a series of steps that cells go through to ____________ and ___________. It can be split into three distinctive processes: ________________, mitosis and ___________________. The first process can be broken down into three distinctive sub-phases. During ____________ and ____________ the cell is carrying on normal cell functions like growing and producing proteins. However, during _____________ the cell’s _____________ is replicated. The cell cycle has _______________ along the way to make sure cells are not reproducing incorrect versions of themselves. In rare occurrences damaged or abnormal cells can get copied which can lead to ______________ or ________________.
CYCLE
CELL
GROW
DIVIDE
CYTOKINESIS
INTERPHASE G1 G2
S-PHASE
DNA
CHECKPOINTS
TUMORS
CANCER
Grow, Cell Cycle, Divide, Cytokinesis, G1, Interphase, G2, Checkpoints, DNA, Cancer, S-phase, Tumors

2. Warm Up Journals: Page:38 Title: Mitosis
Set up Notes
Journals:
Page:38
Title: Mitosis
EQ: What are the stages of mitosis and why are they important to the growth of organisms?

3. Announcements Coach Gomez and Coach Dickerman will dismiss class.
Don’t be upset if you fail and you are not taking advantage of extra credit opportunities
Test is next Wednesday
Note Cards will be your first grade on the next six weeks

4. The student will describe the stages of the
Today’s Standard:
[BIO.5A]
The student will describe the stages of the
cell cycle, including mitosis and the
importance of the cell cycle to the growth of organisms

5. CELL DIVISION: process where a cell divides into TWO identical daughter cells *purpose is to make an exact copy

6. G1 S G2 CELL CYCLE CYTOKINESIS INTERPHASE MITOSIS
Today we will cover the last two parts of the cell cycle: Mitosis (M-phase) and Cytokinesis S G2

7. MITOSIS (M phase): division of the cell’s nucleus
MITOSIS (M phase): division of the cell’s nucleus *it is divided into FOUR PHASES aka: PMAT

8. What are the four phases of Mitosis?
Umm, what the heck is a PMAT?

9. Chromosomes are tightly coiled DNA. DNA is located in the nucleus.
Before we move on…
The next few slides will be discussing chromosomes. As a student you’ll need to remember that
Chromosomes are tightly coiled DNA. DNA is located in the nucleus.

10. Mitosis only occurs while cells are dividing
Mitosis only occurs while cells are dividing. Cells perform mitosis for growth and repair. The tip of a root is growing almost constantly, therefore when we zoom in on an onion root tip we should see mitosis going on.
Onion Root Tip

11. Interphase: Nucleus is still visible
Most cells are in this phase (includes G1, S, G2)
*if you can see a nucleus…it’s interphase

12. Prophase: Nucleus disappears,
Individual chromosomes condense and are visible.
*looks like noodles

14. The centrioles are two tiny structures located in the cytoplasm that help organize the spindle. The spindle is a fanlike microtubule structure that helps separate the chromosomes.

15. Metaphase: Spindle fibers attach and line up chromosomes at the equator (center) of the cell *M means “middle”

16. ANAPHASE: the centromeres joining the sister chromatids split; chromosomes move away to opposite sides of the cell, near the poles of the spindle. *A means “away”

17. TELOPHASE: chromosomes are on opposite sides; nuclear membranes reappear to form two new nuclei (nuclei = more than 1 nucleus) *T means two

18. CYTOKINESIS: -division of the cytoplasm; two identical cells are produced -final stage of the cell cycle

19. Helpful Ways to Remember all of this!
I-PMAT-C
I Punched My Algebra Teacher’s Cat
The Cell Cycle Cheer
*Packers Make Another Touchdown-Cytokinesis

20. Animation

21. G1 S G2 CELL CYCLE CYTOKINESIS INTERPHASE MITOSIS PROPHASE METAPHASE
ANAPHASE
Ninja Skills Challenge:
Sage/Scribe Activity
Can you instruct your partner
how to fill in the missing spaces
without looking at your notes? G2
TELOPHASE

23. The cell cycle is an on-going process
The cell cycle is an on-going process. The pictures below are “snapshots” of cells at various stages of mitosis.
So, you may see a cell “on it’s way” to metaphase or anaphase. They will not stay in any phase permanently.
The cells will continue through the process and repeat until they die.

24. Your turn…. 1 5 2 6 3 4

25. Use your notes to create a notecard for the following words
Mitosis
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

26. Cell Cycle Extra Credit
Comic Strip
Create an 8-10 panel comic strip showing a cell duplicating itself
Must include:
Dialogue
IPMATC
7 vocabulary words
Color
Results of cell division