1. The Cell Cycle

2. Essential Question
What is cancer and how can it
affect my life?

3. What is happening in our cells?
Catalyst:
How do humans grow?
What is happening in our cells?

4. Why do our cells grow and divide?

5. #1 Reproduction
ASEXUAL – create identical offspring to parent
SEXUAL – offspring is combination of 2 parents

6. #2 Growth
DEVELOPMENT CELL DIFFERENTIATION

7. Regenerate lost tissue Replace aging cells
#3 Repair
Regenerate lost tissue
Replace aging cells

8. Why is it important in reproduction, growth and repair that cells divide?

9. In a journal entry, summarize what you learned today and how this information might relate to our essential question.

10. Need Genetic Info for New Cells
A. Chromosomes – DNA and protein coiled together
(Chromo = color, some = body)
B. Contains genetic info from both parents
Where are chromosomes stored in the cell?
C. Humans have 46 chromosomes in the nucleus of body cells

11. Organism
Number of Chromosomes
Goldfish 94
Shrimp
254
Chimpanzee 48
Fruit Fly 8
Peas 14

12. How the Cell Cycle Works Video

13. Cell Cycle

14. The Cell Cycle
A. Interphase – cell grows and prepares for cell division by copying chromosomes and making more organelles
B. Mitosis – Chromosomes separate into two nuclei
C. Cytokinesis-Cytoplasm separates forming 2 daughter cells

15. INTERPHASE-
WHERE CELLS SPEND MOST OF THEIR TIME.

16. G1-Gap 1 phase
#1 How are these pictures of the same cell different?

17. S-Synthesis phase
#2 What happens in S phase?

18. #3 The Nucleus is the__________of the cell.
#4 The Nucleus contains_______________________,
which are the instructions for the cell.
#5 These instruction are found in the
____________________________.
#6 Why does the cell need to copy these instructions?

19. Nucleus= Control Center
DNA= Instructions
Chromosomes=Library

20. G2-Gap 2 phase
#7 How are these pictures of the same cell different?

22. 1. Prophase
#8 What first appears?
#9 What disappears?
#10 What forms to help arrange chromosomes?

23. 2. Metaphase
#11 Where do the chromosomes go?

24. 3. Anaphase
#12 What happens to the sister chromatids?

25. 4. Telophase
#9 What reforms during telophase?

27. Cytokinesis #13 What is cytokinesis?
#14 What phase occurs after cytokinesis?

28. Mitosis in Cells

30. Mnemonic Device Cell Cycle Mitosis Go Sally Go! Make Cookies.
Please Make Another Tadpole.

31. #15 Summarize what you learned today?

32. Mitosis Flip Book HMWK due Thursday
Draw what is happening in each stage of the CELL CYCLE.
Write a caption for each image.
Be Creative!!!!

34. What is Cancer?