1. 11/16 & 11/17 - 7 th Grade Agenda Collect HW: Reading & Note Taking p.75 - 78 Cell Division Brain Pop Cell Division Cell Cycle Quiz Microviewer Lab (Cell Structures) Class Reading p.133-136 HW: Reading & Note Taking p.79 – 80

2. Reflection Prompt: What is the Cell Cycle and name 2 phases in the Cell Cycle.

3. Mitosis Animations & Movie http://www.cellsalive.com/mitosis.htm http://www.cellsalive.com/cell_cycle.htm http://www.pbs.org/wgbh/nova/baby/divide.html#http://www.pbs.org/wgbh/nova/baby/divide.html# http://www.contexo.info/DNA_Basics/mitos is%20movie.htm

4. Cell Cycle Interphase Prophase Metaphase Anaphase Telophase Cytokinesis ? ? ? ? ? ?

5. Interphase Stage 1: Interphase: Period before cell division occurs. –Cell is doing its J___ while growing (doubles in size) –Replicates (make a copy) its DNA ob

6. Mitosis : Prophase Prophase: Identical Chromatids p______. They are held together by a centromere air up

7. Mitosis : Metaphase Metaphase: Chromosomes line up in the m______ iddle

8. Mitosis : Anaphase Anaphase: The centromeres split and the chromosomes are pulled a______ part

9. Mitosis: Telophase Telophase: Each set of chromosomes are F___ away and a nucleus forms around them ar

10. Cytokinesis The cell membrane m______ inwards then pinches in two. This form 2 identical cells oves

11. DNA – Deoxyribonucleic Acid Nitrogen Based Molecules (4 Letters of DNA Alphabet) A pairs up with ____ G pairs up with ____ T C

12. Cell Cycle Stage 1: Interphase: Period before cell division occurs. –Cell doubles in size –Copy the DNA in its nucleus

13. Cell Cycle Stage 2: Mitosis –One copy of the DNA is distributed into each of the two daughter cells

14. Cell Cycle Stage 3: Cytokinesis –Cytoplasm divides

15. Cell Cycle Facts Some cells divides every 2 hours or less Human Liver cells divides every 22 hours There are about _____ million cells dividing in your body right now!! Most cells divide but human b_____ cells never divide. 100 rain

16. Cell Cycle Facts Some cells divides every 2 hours or less Human Liver cells divides every 22 hours There are about 100 million cells dividing in your body right now!! Most cells divide but human brain cells never divide.

17. Chromosomes

18. DNA Replication DNA looks like a spiral staircase “double helix” Two sides of DNA ladder are made up of sugar called deoxyribose and Phosphate Adenine always pairs with Thymine Cytosine always pairs with Guanine

19. Cancer What is Cancer Mutation: Damage to the DNA

20. Cancer Cancer begins when mu________ disrupt the normal cell cycle causing cells to di_________ in an uncontrolled way Eventually a tu______ (a mass of abnormal cells) forms. tation vide mor

21. How Cancer Spreads

22. Treating Cancer Surgery: Only effective during early stages Radiation: Radiation also destroy healthy cells Chemotherapy: Uses of drugs to kill cancer cells. Side effect: Also kills healthy cells.

23. Cancer Prevention 2/3 of all cancer deaths are caused by tobacco use or unhealthful diets Smoking is the main cause of lung cancer

24. Cancer Prevention Diet high in fat (fatty meats, fried foods) is harmful Diet that includes a lot of fruits, vegetables and grain products can lower some type of cancer.

25. Cell Cycle Quiz: Groups of 3 students p.132 & 133 Front of the card Back of the card Name of the Phase : Mitosis: Prophase Summary of the Phase: Spindle Fiber, Centromere & Chromatids form. 1. Each student will create 2 cards 2. The group will combine their cards to complete the cell cycle 3. Students in each group will quiz each other with their flash cards 4.Apprentices will come around and quiz and grade each of the group