1. 11/13 & 11/ th Grade Agenda
Learning Objective: Learn about Stem Cells
Collect HW: HW: Chap 4 Section 1 & 2 Reading Guide
Chap 4 Study Guide
Video: Test Your Brain
Class Reading p
HW: Unit Review & Reinforce p. 89 & 92
Reminder: Chap 4 Test on 11/18 & 11/19

2. Reflection
Prompt: Write 3 questions that you have about cancer.

3. Reflection
Prompt: Write 3 facts that you learned watching the Brain pop video.

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

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

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

7. Cell Cycle
Stage 3: Cytokinesis
Cytoplasm divides

8. Cell Cycle Facts 100 rain Some cells divide every 2 hours or less
Human Liver cells divide 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

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

10. Chromosomes

11. 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

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

13. Cancer
tation
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.
vide
mor

14. How Cancer Spreads

15. 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.

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

17. 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.

18. Differentiation erent
As cells differentiate, they become diff_____ from one another.
erent

19. Stem Cells
Stem Cells respond to specific needs in the body by becoming a spec____zed ce___
iali ll