1. Make Cell Specialization Quiz Load videos
Make model foldable (Complete tabs for the specific station they are at)
Make a mixture of Dana and Brads directions so the foldable is more comprehensive
Add point values to the directions for grading guidelines
Make practice problems and HWs
Make manipulatives with the Cell cycle stages and stages of mitosis
MAKE BRAINPOP video notes
MAKE the YARN chromosomes to explain chromosomes/chromatin/chromatid/centromere
COME UP with some sort of visual to go along with the cell cyle..or memory trick
Finalize practice for mitosis day 1 & 2
Make mitosis quiz
Make test
Make review materials for review day (…stations..?)

2. DO NOW
Take 2 minutes to study for your QUIZ on Cell Specialization & Communication
Study Notes:
#14 (Cell Specialization)
#18 (Cell Communication)

3. Quick Write 1. Who do you most agree with? _____________
2. Why do you agree with this student? ________
____________________________________________________________________________________________________________________________________________

4. Vocabulary Throwback…
What does it mean when you have the PREFIX ‘A-”
-Without
Example: Abiotic?.... Without life

5. So…
What do you think the word ASEXUAL means?

6. Asexual Reproduction
HEREDITY is the process by which parent organisms transfer their genetic information (DNA) to offspring.
Eukaryotic organisms (plant/animal) transfer genetic information (DNA) in the form of CHROMOSOMES (coiled DNA).

7. Most human cells contain 23 pairs or 46 chromosomes.
ASEXUAL reproduction - the production of genetically identical offspring from one parent using MITOTIC cell division.

8. What does Asexual Reproduction Result in?
Results in genetic STABILITY between generations
This means each generation is IDENTICAL

9. What are the ADVANTAGES?
No need to find a MATE (saves energy)
Rapid population growth

10. What are the DISAVANTAGES?
Disadvantage
No VARIATION (all identical)

11. Types of Asexual Reproduction

12. MITOSIS
MITOSIS is the process somatic cells (“body cells”) use to divide in our body to promote growth and development in an organism. It is ASEXUAL reproduction.
Facts about Mitosis
DNA REPLICATES (copies itself) before division
# of divisions: 1
# of daughter cells: 2
Daughter cells are IDENTICAL

13. BRAINPOP!

14. It’s The circle of cell life
How do cells reproduce and grow?

15. The Basics… What must be present in EVERY cell?
What must happen BEFORE a cell divides?

16. WHAT IS THIS? 16

17. Why do cells divide?
To replace other cells that have been damaged or worn out
To allow multicellular organisms to grow
For asexual reproduction
Because they get too big!

18. What is MITOSIS?
Mitosis is the process by which the nucleus of one cell DIVIDES into two nuclei
Therefore, each cell has the same genetic material as the original cell
Its like “photocopying”(or CLONING) the cell- the two daughter cells are identical

19. Genetic Information
Genetic information is contained in the DNA of the cell
DNA is found in the thread-like coils called CHROMATIN when the cell is NOT dividing
When the cell is dividing, the chromatin condenses (packs into) chromosomes
genes are small sections of chromosomes that contain the information for a specific cell function

20. What makes up a chromosome?
DNA wrapped around PROTEINS!

21. The Big Picture

22. Let Make our OWN Chromosomes!

23. Human Chromosomes

24. The cell cycle

25. The cell spends the most amount of time in interphase- growing
Cell Cycle
The cell spends the most amount of time in interphase- growing

27. Cell Cycle- Interphase
During INTERPHASE the cell is GROWING and preparing to reproduce
The cell’s DNA is being copied (replicated)
The DNA is in the form of loosely coiled CHROMATIN

28. Cell Cycle- Mitosis
Remember! Mitosis is the stage of the cell cycle in which the nucleus and cell divides
Mitosis is divided into:
Prophase
Metaphase
Anaphase
Telophase
**(Cytokinesis)**

29. The cell spends a very short amount of time in mitosis- dividing
Cell Cycle
The cell spends a very short amount of time in mitosis- dividing

30. The phases of mitosis

31. Prophase The nuclear membrane begins to break down
Chromosomes are condensed and consist of 2 sister chromatids
The nuclear membrane begins to break down
Spindle fibers appear
The CENTROMERE joins each pair of sister chromatids to the spindle fiber
MEMORY TRICK:
Pro  PRIOR (1st phase)

32. Metaphase Chromosomes line up along the middle of the cell
MEMORY TRICK:
Metaphase = Middle

33. Anaphase Spindle fibers separate sister chromatids and pull them apart
Once they have separated they are individual chromosomes
MEMORY TRICK:
Anaphase = Away

34. Telophase Spindle fibers disassemble Nuclear envelope reforms
The nuclear envelope will become the nuclear membrane
MEMORY TRICK:
Telophase = Two (new cells)

35. Cytokinesis The cytoplasm is divided between the two cells
In animal cells, cell membrane pinches off forming two new separate cells
In plant cells, cell membrane pinches off and a cell wall forms

36. KEY FACTS ABOUT MITOSIS
What TYPE of cells?
SOMATIC cells = BODY cells (skin, etc.)
WHEN?
BEFORE cell division
WHY?
REPLACE worn out cells
GROWTH of multicellular organisms
ASEXUAL Reproduction
Because they cells get TOO BIG and must divide
# of DIVISIONS?
ONE (identical daughter cells)
# of DAUGHTER CELLS?
2 (identical) daughter cells
Genetic STABILITY or VARIATION?
STABILITY (means IDENTICAL)

37. Mitosis in action!

38. BRAINPOP!

39. Check Point B A C D E 39

40. Check Point
Which statement is true regarding asexual reproduction as a method of producing offspring?
limited to unicellular organisms
common among mammals
not a method used by plants
produces offspring that are genetically identical
Put the pictures of mitosis (bottom right) in chronological order.
Why do cells divide?
What occurs in metaphase? B C A D 40 E

41. Cell Cycle Practice (practice sheets from fall 2011..?)
Manipulatives
Mitosis Foldable Stations